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card_3045.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>3045</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>3</id> <text>by Iverson Software Co.Tell us what you want on your Macintosh!™This is Shareware! If you keep it, send $5.00 to:Iverson Software Co.522 Record StreetMankato MN 56001-2546507.625.7355AppleLink: J5rsonAmerica Online: IversonSCopyright & DisclaimerCopyright ©1995 Iverson Software Co. and its licensors. All rights reserved.This software is brought to you by Iverson Software Co. This software is provided "as is" without warranty of any kind, and Iverson Software Co. expressly disclaims all implied warranties, including but not limited to the warranties of merchantability and fitness for a particular purpose. The entire risk as to the results and performance of this software is assumed by you.</text> </content> <content> <layer>background</layer> <id>2</id> <text>Acoustics Glossary</text> </content> <name></name> <script></script> </card> card_3834.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>3834</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>A-weighting</text> </content> <content> <layer>background</layer> <id>3</id> <text>A frequency-response adjustment of a sound-level meter that makes its reading conform, very roughly, to human response.</text> </content> <name></name> <script></script> </card> card_3964.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>3964</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>abffusor</text> </content> <content> <layer>background</layer> <id>3</id> <text>A proprietary panel offering both absorption and diffusion of sound.</text> </content> <name></name> <script></script> </card> card_4241.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>4241</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>absorption</text> </content> <content> <layer>background</layer> <id>3</id> <text>The changing of sound energy to heat.</text> </content> <name></name> <script></script> </card> card_4537.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>4537</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>absorption coefficient</text> </content> <content> <layer>background</layer> <id>3</id> <text>The fraction of sound energy that is absorbed at any surface. It has a value between 0 and 1 and varies with the frequency and angle of incidence of the sound.</text> </content> <name></name> <script></script> </card> card_4847.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>4847</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>acoustics</text> </content> <content> <layer>background</layer> <id>3</id> <text>The science of sound. It can also refer to the effect a given environment has on sound.</text> </content> <name></name> <script></script> </card> card_4886.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>4886</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>AES</text> </content> <content> <layer>background</layer> <id>3</id> <text>Audio Engineering Society.</text> </content> <name></name> <script></script> </card> card_5306.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>5306</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ambience</text> </content> <content> <layer>background</layer> <id>3</id> <text>The distinctive acoustical characteristics of a given space.</text> </content> <name></name> <script></script> </card> card_5507.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>5507</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>amplifier, line</text> </content> <content> <layer>background</layer> <id>3</id> <text>An amplifier designed to operate at intermediate levels. Its output is usually on the order of one volt.</text> </content> <name></name> <script></script> </card> card_5735.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>5735</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>amplifier, output</text> </content> <content> <layer>background</layer> <id>3</id> <text>A power amplifier designed to drive a loudspeaker or other load.</text> </content> <name></name> <script></script> </card> card_6048.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>6048</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>amplitude</text> </content> <content> <layer>background</layer> <id>3</id> <text>The instantaneous magnitude of an oscillating quantity such as sound pressure. The peak amplitude is the maximum value.</text> </content> <name></name> <script></script> </card> card_6248.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>6248</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>amplitude distortion</text> </content> <content> <layer>background</layer> <id>3</id> <text>A distortion of the wave shape of a signal.</text> </content> <name></name> <script></script> </card> card_6416.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>6416</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>analog</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electrical signal whose frequency and level vary continuously in direct relationship to the original electrical or acoustical signal.</text> </content> <name></name> <script></script> </card> card_6795.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>6795</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>anechoic</text> </content> <content> <layer>background</layer> <id>3</id> <text>Without echo.</text> </content> <name></name> <script></script> </card> card_6924.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>6924</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>anechoic chamber</text> </content> <content> <layer>background</layer> <id>3</id> <text>A room designed to suppress internal sound reflections. Used for acoustical measurements.</text> </content> <name></name> <script></script> </card> card_7363.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>7363</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>articulation</text> </content> <content> <layer>background</layer> <id>3</id> <text>A quantitative measure of the intelligibility of speech; the percentage of speech items correctly perceived and recorded.</text> </content> <name></name> <script></script> </card> card_7489.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>7489</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>artificial reverberation</text> </content> <content> <layer>background</layer> <id>3</id> <text>Reverberation generated by electrical or acoustical means to simulate that of concert halls, etc., added to a signal to make it sound more lifelike.</text> </content> <name></name> <script></script> </card> card_7887.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>7887</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ASA</text> </content> <content> <layer>background</layer> <id>3</id> <text>Acoustical Society of America.</text> </content> <name></name> <script></script> </card> card_7938.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>7938</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ASHRAE</text> </content> <content> <layer>background</layer> <id>3</id> <text>American Society of Heating, Refrigerating, and Air-Conditioning Engineers.</text> </content> <name></name> <script></script> </card> card_8208.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>8208</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>attack</text> </content> <content> <layer>background</layer> <id>3</id> <text>The beginning of a sound; the initial transient of a musical note.</text> </content> <name></name> <script></script> </card> card_8518.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>8518</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>attenuate</text> </content> <content> <layer>background</layer> <id>3</id> <text>To reduce the level of an electrical or acoustical signal.</text> </content> <name></name> <script></script> </card> card_8710.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>8710</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>attenuator</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device, usually a variable resistance, used to control the level of an electrical signal.</text> </content> <name></name> <script></script> </card> card_9067.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>9067</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>audio frequency</text> </content> <content> <layer>background</layer> <id>3</id> <text>An acoustical or electrical signal of a frequency that falls within the audible range of the human ear, usually taken as 20 Hz to 20 kHz.</text> </content> <name></name> <script></script> </card> card_9337.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>9337</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>audio spectrum</text> </content> <content> <layer>background</layer> <id>3</id> <text>See audio frequency.</text> </content> <name></name> <script></script> </card> card_9658.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>9658</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>auditory area</text> </content> <content> <layer>background</layer> <id>3</id> <text>The sensory area lying between the threshold of hearing and the threshold of feeling or pain.</text> </content> <name></name> <script></script> </card> card_9729.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>9729</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>auditory cortex</text> </content> <content> <layer>background</layer> <id>3</id> <text>The region of the brain receiving nerve impulses from the ear.</text> </content> <name></name> <script></script> </card> card_10108.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>10108</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>auditory system</text> </content> <content> <layer>background</layer> <id>3</id> <text>The human hearing system made up of the external ear, the middle ear, the inner ear, the nerve pathways, and the brain.</text> </content> <name></name> <script></script> </card> card_10290.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>10290</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>aural</text> </content> <content> <layer>background</layer> <id>3</id> <text>Having to do with the auditory mechanism.</text> </content> <name></name> <script></script> </card> card_10721.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>10721</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>axial mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>The room resonances associated with each pair of parallel walls.</text> </content> <name></name> <script></script> </card> card_10860.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>10860</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>baffle</text> </content> <content> <layer>background</layer> <id>3</id> <text>A movable barrier used in the recording studio to achieve separation of signals from different sources. The surface or board upon which a loudspeaker is mounted.</text> </content> <name></name> <script></script> </card> card_11476.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>11476</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>bandpass filter</text> </content> <content> <layer>background</layer> <id>3</id> <text>A filter that attenuates signals both below and above the desired passband.</text> </content> <name></name> <script></script> </card> card_11639.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>11639</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>bandwidth</text> </content> <content> <layer>background</layer> <id>3</id> <text>The frequency range passed by a given device or structure.</text> </content> <name></name> <script></script> </card> card_11869.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>11869</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>basilar membrane</text> </content> <content> <layer>background</layer> <id>3</id> <text>A membrane inside the cochlea that vibrates in response to sound, exciting the hair cells.</text> </content> <name></name> <script></script> </card> card_12068.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>12068</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>bass</text> </content> <content> <layer>background</layer> <id>3</id> <text>The lower range of audible frequencies.</text> </content> <name></name> <script></script> </card> card_12354.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>12354</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>bass boost</text> </content> <content> <layer>background</layer> <id>3</id> <text>The increase in level of the lower range of frequencies, usually achieved by electrical circuits.</text> </content> <name></name> <script></script> </card> card_12732.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>12732</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>beats</text> </content> <content> <layer>background</layer> <id>3</id> <text>Periodic fluctuations that are heard when sounds of slightly different frequencies are superimposed.</text> </content> <name></name> <script></script> </card> card_12808.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>12808</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>binaural</text> </content> <content> <layer>background</layer> <id>3</id> <text>A situation involving listening with two ears.</text> </content> <name></name> <script></script> </card> card_13174.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>13174</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>boomy</text> </content> <content> <layer>background</layer> <id>3</id> <text>Colloquial expression for excessibe bass response in a recording, playback, or sound-reinforcing system.</text> </content> <name></name> <script></script> </card> card_13531.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>13531</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>byte</text> </content> <content> <layer>background</layer> <id>3</id> <text>A term used in digital systems. Equal to 8 bits of data. A bit is the elemental "high" or "low" state of a binary system.</text> </content> <name></name> <script></script> </card> card_13810.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>13810</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>capacitor</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electical component that passes alternating currents but blocks direct currents. Also called a condensor, it is capable of storing electrical energy.</text> </content> <name></name> <script></script> </card> card_13833.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>13833</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>clipping</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electrical signal is clipped if the signal level exceeds the capabilities of the amplifier. It is a distortion of the signal.</text> </content> <name></name> <script></script> </card> card_14101.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>14101</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>cochlea</text> </content> <content> <layer>background</layer> <id>3</id> <text>The portion of the inner ear that changes the mechanical vibrations of the cochlear fluid into electrical signals. It is the frequency-analyzing portion of the auditory system.</text> </content> <name></name> <script></script> </card> card_14394.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>14394</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>coloration</text> </content> <content> <layer>background</layer> <id>3</id> <text>The distortion of a signal detectable by the ear.</text> </content> <name></name> <script></script> </card> card_14674.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>14674</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>comb filter</text> </content> <content> <layer>background</layer> <id>3</id> <text>A distortion produced by combining an electrical or acoustical signal with a delayed replica of itself. The result is constructive and destructive interference that resuts in peaks and nulls being introduced into the frequency response. When plotted to a linear frequency scale, the response resembles a comb, hence the name.</text> </content> <name></name> <script></script> </card> card_15015.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>15015</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>compression</text> </content> <content> <layer>background</layer> <id>3</id> <text>Reducing the dynamic range of a signal by electrical circuits that reduce the level of loud passages.</text> </content> <name></name> <script></script> </card> card_15303.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>15303</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>condensor</text> </content> <content> <layer>background</layer> <id>3</id> <text>Another word for capacitor.</text> </content> <name></name> <script></script> </card> card_15429.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>15429</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>correlogram</text> </content> <content> <layer>background</layer> <id>3</id> <text>A graph showing the correlation of one signal with another.</text> </content> <name></name> <script></script> </card> card_15660.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>15660</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>cortex</text> </content> <content> <layer>background</layer> <id>3</id> <text>See auditory cortex.</text> </content> <name></name> <script></script> </card> card_16014.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>16014</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>critical band</text> </content> <content> <layer>background</layer> <id>3</id> <text>In human hearing, only those frequency components within a narrow band, called the critical band, will mask a given tone. Critical bandwidth varies with frequency but is usually between 1/6 and 1/3 octave.</text> </content> <name></name> <script></script> </card> card_16378.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>16378</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>crossover frequency</text> </content> <content> <layer>background</layer> <id>3</id> <text>In a loudspeaker with multiple radiators, the crossover frequency is the -3 - dB point of the network dividing the signal energy.</text> </content> <name></name> <script></script> </card> card_16413.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>16413</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>crosstalk</text> </content> <content> <layer>background</layer> <id>3</id> <text>The signal of one channel, track, or circuit interfering with another.</text> </content> <name></name> <script></script> </card> card_16811.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>16811</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>cycles per second</text> </content> <content> <layer>background</layer> <id>3</id> <text>The frequency of an electrical signal or sound wave. Measured in Hertz (Hz).</text> </content> <name></name> <script></script> </card> card_16983.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>16983</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dB</text> </content> <content> <layer>background</layer> <id>3</id> <text>Short for decibel.</text> </content> <name></name> <script></script> </card> card_17174.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>17174</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dB(A)</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound-level meter reading with an A-weighting network simulating the human-ear response at a loudness level of 40 phons.</text> </content> <name></name> <script></script> </card> card_17555.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>17555</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dB(B)</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound-level meter reading with a B-weighting network simulating the human-ear response at a loudness level of 70 phons.</text> </content> <name></name> <script></script> </card> card_17707.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>17707</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dB(C)</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound-level meter reading with no weighting network in the circuit, i.e., flat. The reference level is 20 µPa.</text> </content> <name></name> <script></script> </card> card_18056.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>18056</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>decade</text> </content> <content> <layer>background</layer> <id>3</id> <text>Ten times any quantity or frequency range. The range of the human ear is about 3 decades.</text> </content> <name></name> <script></script> </card> card_18278.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>18278</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>decay rate</text> </content> <content> <layer>background</layer> <id>3</id> <text>A measure of the decay of acoustical signals, expressed as a slope in dB/second.</text> </content> <name></name> <script></script> </card> card_18526.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>18526</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>decibel</text> </content> <content> <layer>background</layer> <id>3</id> <text>The human ear responds logarithmically and it is convenient to deal in logarthmic units in audio systems. The bel is the logarithm of the ratio of two powers, and the decibel is one tenth of a bel.</text> </content> <name></name> <script></script> </card> card_19180.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>19180</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>delay line</text> </content> <content> <layer>background</layer> <id>3</id> <text>A digital, analog, or mechanical device employed to delay one audio signal with respect to another.</text> </content> <name></name> <script></script> </card> card_19398.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>19398</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>diaphragm</text> </content> <content> <layer>background</layer> <id>3</id> <text>Any surface that vibrates in response to sound or is vibrated to emit sound, such as in microphones and loudspeakers. Also applied to wall and floor surfaces vibrating in response to sound or in transmitting sound.</text> </content> <name></name> <script></script> </card> card_19530.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>19530</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dielectric</text> </content> <content> <layer>background</layer> <id>3</id> <text>An insulating material. The material between the plates of a capacitor.</text> </content> <name></name> <script></script> </card> card_19940.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>19940</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>diffraction</text> </content> <content> <layer>background</layer> <id>3</id> <text>The distortion of a wavefront caused by the presence of an obstacle in the sound field.</text> </content> <name></name> <script></script> </card> card_20030.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>20030</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>diffusor</text> </content> <content> <layer>background</layer> <id>3</id> <text>A proprietary device for the diffusion of sound through reflection-phase-grating means.</text> </content> <name></name> <script></script> </card> card_20282.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>20282</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>digital</text> </content> <content> <layer>background</layer> <id>3</id> <text>A numeric representation of an analog signal. Pertaining to the application of digital techniques to common tasks.</text> </content> <name></name> <script></script> </card> card_20574.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>20574</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>distance double law</text> </content> <content> <layer>background</layer> <id>3</id> <text>In pure spehical divergence of sound from a point source in free space, the sound pressure level decreases 6 dB for each doubling of the distance. This condition is rarely encountered in practice, but it is a handy rule to remember in estimating sound changes with distance.</text> </content> <name></name> <script></script> </card> card_20873.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>20873</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>distortion</text> </content> <content> <layer>background</layer> <id>3</id> <text>Any change in the waveform or harmonic content of an original signal as it passes through a device. The result of nonlinearity within the device.</text> </content> <name></name> <script></script> </card> card_21186.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>21186</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>distortion, harmonic</text> </content> <content> <layer>background</layer> <id>3</id> <text>Changing the harmonic content of a signal by passing it through a nonlinear device.</text> </content> <name></name> <script></script> </card> card_21389.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>21389</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>DSZ</text> </content> <content> <layer>background</layer> <id>3</id> <text>Diffused sound zone.</text> </content> <name></name> <script></script> </card> card_21745.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>21745</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dynamic range</text> </content> <content> <layer>background</layer> <id>3</id> <text>All audio systems are limited by inherent noise at low levels and by overload distortion at high levels. The usable region between these two extremes is the dynamic range of the system. Expressed in dB.</text> </content> <name></name> <script></script> </card> card_21848.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>21848</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>dyne</text> </content> <content> <layer>background</layer> <id>3</id> <text>The force that will accelerate a 1-gram mass at the rate of 1 cm/sec. The old standard reference level for sound pressure was 0.0002 dyne/sq cm. The same level today is expressed as 20 micro pascals, or 20 µPa.</text> </content> <name></name> <script></script> </card> card_22240.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>22240</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ear canal</text> </content> <content> <layer>background</layer> <id>3</id> <text>The external auditory meatus; the canal between the pinna and the eardrum.</text> </content> <name></name> <script></script> </card> card_22387.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>22387</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>eardrum</text> </content> <content> <layer>background</layer> <id>3</id> <text>The tympanic membrane located at the end of the ear canal that is attached to the ossicles of the middle ear.</text> </content> <name></name> <script></script> </card> card_22670.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>22670</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>echo</text> </content> <content> <layer>background</layer> <id>3</id> <text>A delayed return of sound that is perceived by the ear as a discrete sound image.</text> </content> <name></name> <script></script> </card> card_22803.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>22803</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>echograms</text> </content> <content> <layer>background</layer> <id>3</id> <text>A record of the very early reverberatory decay of sound in a room.</text> </content> <name></name> <script></script> </card> card_23163.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>23163</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>EES</text> </content> <content> <layer>background</layer> <id>3</id> <text>Early, early sound. Structure-borne sound may reach the microphone in a room before the air-borne sound because sound travels faster through the denser materials.</text> </content> <name></name> <script></script> </card> card_23462.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>23462</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>EFC</text> </content> <content> <layer>background</layer> <id>3</id> <text>Energy-frequency curve.</text> </content> <name></name> <script></script> </card> card_23650.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>23650</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>EFTC</text> </content> <content> <layer>background</layer> <id>3</id> <text>Energy-frequency-time curve.</text> </content> <name></name> <script></script> </card> card_24038.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>24038</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ensemble</text> </content> <content> <layer>background</layer> <id>3</id> <text>Musicians must hear each other to function properly; in other words, ensemble must prevail. Diffusing elements surrounding the stage area contribute greatly to ensemble.</text> </content> <name></name> <script></script> </card> card_24235.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>24235</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>equal loudness contour</text> </content> <content> <layer>background</layer> <id>3</id> <text>A contour representing a constant loudness for all audible frequencies. The countour having a sound pressure level of 40 dB at 1000 Hz is arbitrarily defined as the 40-phon contour.</text> </content> <name></name> <script></script> </card> card_24502.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>24502</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>equalization</text> </content> <content> <layer>background</layer> <id>3</id> <text>The process of adjusting the frequency response of a device or system to achieve a flat or other desired response.</text> </content> <name></name> <script></script> </card> card_24598.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>24598</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>equalizer</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device for adjusting the frequency response of a device or system.</text> </content> <name></name> <script></script> </card> card_24985.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>24985</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Eustachian tube</text> </content> <content> <layer>background</layer> <id>3</id> <text>The tube running from the middle ear into the pharynx that equalizes middle-ear and atmospheric pressure.</text> </content> <name></name> <script></script> </card> card_25130.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>25130</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>external meatus</text> </content> <content> <layer>background</layer> <id>3</id> <text>The ear canal terminated by the eardrum.</text> </content> <name></name> <script></script> </card> card_25396.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>25396</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>feedback, acoustic</text> </content> <content> <layer>background</layer> <id>3</id> <text>Unwanted interaction between the output and input of an acoustical system, e.g., between the loudspeaker and the microphone of a system.</text> </content> <name></name> <script></script> </card> card_25806.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>25806</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>FFT</text> </content> <content> <layer>background</layer> <id>3</id> <text>Fast Fourier Transform. An iterative program that computes the Fourier Transform in a shorter time.</text> </content> <name></name> <script></script> </card> card_25972.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>25972</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>fidelity</text> </content> <content> <layer>background</layer> <id>3</id> <text>As applied to sound quality, the faithfulness to the original.</text> </content> <name></name> <script></script> </card> card_26198.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>26198</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>filter, bandpass</text> </content> <content> <layer>background</layer> <id>3</id> <text>A filter that passes all frequencies between a low-frequency cutoff point and a high-frequency cutoff point.</text> </content> <name></name> <script></script> </card> card_26701.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>26701</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>filter, high pass</text> </content> <content> <layer>background</layer> <id>3</id> <text>A filter that passes all frequencies above a cutoff frequency.</text> </content> <name></name> <script></script> </card> card_26885.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>26885</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>filter, low pass</text> </content> <content> <layer>background</layer> <id>3</id> <text>A filter that passes all frequencies below a cutoff frequency.</text> </content> <name></name> <script></script> </card> card_27245.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>27245</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>flanging</text> </content> <content> <layer>background</layer> <id>3</id> <text>The term applied to the use of comb filters to obtain special sound effects.</text> </content> <name></name> <script></script> </card> card_27635.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>27635</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>flutter</text> </content> <content> <layer>background</layer> <id>3</id> <text>A repetitive echo set up by parallel reflecting surfaces.</text> </content> <name></name> <script></script> </card> card_27839.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>27839</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Fourier analysis</text> </content> <content> <layer>background</layer> <id>3</id> <text>Application of the Fourier transform to a signal to determine its spectrum.</text> </content> <name></name> <script></script> </card> card_27964.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>27964</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>frequency</text> </content> <content> <layer>background</layer> <id>3</id> <text>The measure of the rapidity of alterations of a periodic signal, expressed in cycles per second or Hz.</text> </content> <name></name> <script></script> </card> card_28181.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>28181</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>frequency response</text> </content> <content> <layer>background</layer> <id>3</id> <text>The changes in the sensitivity of a circuit or device with frequency.</text> </content> <name></name> <script></script> </card> card_28645.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>28645</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>FTC</text> </content> <content> <layer>background</layer> <id>3</id> <text>Frequency-time curve.</text> </content> <name></name> <script></script> </card> card_28889.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>28889</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>fundamental</text> </content> <content> <layer>background</layer> <id>3</id> <text>The basic pitch of a musical note.</text> </content> <name></name> <script></script> </card> card_29045.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>29045</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>fusion zone</text> </content> <content> <layer>background</layer> <id>3</id> <text>All reflections arriving at the observer's ear within 20 to 40 msec of the direct sound are integrated, or fused together, with a resulting apparent increase in level and a pleasant change of character. This is the Haas effect.</text> </content> <name></name> <script></script> </card> card_29236.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>29236</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>gain</text> </content> <content> <layer>background</layer> <id>3</id> <text>The increase in power level of a signal produced by an amplifier.</text> </content> <name></name> <script></script> </card> card_29527.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>29527</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>graphic-level recorder</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device for recording signal level in dB vs. time on a tape. The level in dB vs. angle can be recorded also for directivity patterns.</text> </content> <name></name> <script></script> </card> card_29905.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>29905</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>grating, diffraction</text> </content> <content> <layer>background</layer> <id>3</id> <text>An optical grating consists of minute, parallel lines used to break light down into its component colors. The principle is now used to achieve diffraction of acoustical waves.</text> </content> <name></name> <script></script> </card> card_30169.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>30169</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>grating, reflection phase</text> </content> <content> <layer>background</layer> <id>3</id> <text>An acoustical diffraction grating to produce diffusion of sound.</text> </content> <name></name> <script></script> </card> card_30455.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>30455</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Haas effect</text> </content> <content> <layer>background</layer> <id>3</id> <text>See fusion zone. Also called the precedence effect. Delayed sounds are integrated by the auditory apparatus if they fall on the ear within 20 to 40 msecs of the direct sound. The level of the delayed compnents contributes to the apparent level of the sound, and it is accompanied by a pleasant change in character.</text> </content> <name></name> <script></script> </card> card_30636.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>30636</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>hair cell</text> </content> <content> <layer>background</layer> <id>3</id> <text>The sensory elements of the cochlea that transduce the mechanical vibrations of the basilar membrane to nerve impulses that are sent to the brain.</text> </content> <name></name> <script></script> </card> card_30777.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>30777</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>harmonics</text> </content> <content> <layer>background</layer> <id>3</id> <text>Integral multiples of the fundamental frequency. The first harmonic is the fundamental, and the second is twice the frequency of the fundamental, etc.</text> </content> <name></name> <script></script> </card> card_31228.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>31228</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>hearing loss</text> </content> <content> <layer>background</layer> <id>3</id> <text>The loss of sensitivity of the auditory system, measured in dB below a standard level. Some hearing loss is age-related; some related to exposure to high-level sound.</text> </content> <name></name> <script></script> </card> card_31267.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>31267</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Helmholtz resonator</text> </content> <content> <layer>background</layer> <id>3</id> <text>A reactive, tuned, sound absorber. A bottle is such a resonator. They can employ a perforated cover or slats over a cavity.</text> </content> <name></name> <script></script> </card> card_31637.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>31637</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>henry</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of inductance.</text> </content> <name></name> <script></script> </card> card_31947.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>31947</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>hertz</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of frequency, abbreviated as Hz. The same as cycles per second.</text> </content> <name></name> <script></script> </card> card_32193.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>32193</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>IEEE</text> </content> <content> <layer>background</layer> <id>3</id> <text>Institute of Electrical and Electronic Engineers.</text> </content> <name></name> <script></script> </card> card_32446.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>32446</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>impedance</text> </content> <content> <layer>background</layer> <id>3</id> <text>The opposition to the flow of electric or acoustic energy measured in ohms.</text> </content> <name></name> <script></script> </card> card_32587.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>32587</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>impedance matching</text> </content> <content> <layer>background</layer> <id>3</id> <text>Maximum power is transferred from one circuit to another wehn the output impedance of the one is matched to the input impedance of the other. Maximum power transfer may be less important in many electronic circuits than low noise or voltage gain.</text> </content> <name></name> <script></script> </card> card_33007.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>33007</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>impulse</text> </content> <content> <layer>background</layer> <id>3</id> <text>A ver short, transient, electric or acoustical signal.</text> </content> <name></name> <script></script> </card> card_33227.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>33227</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>in phase</text> </content> <content> <layer>background</layer> <id>3</id> <text>Two periodic waves reaching peaks and going through zero at the same instant are said to be "in phase".</text> </content> <name></name> <script></script> </card> card_33525.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>33525</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>inductance</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electrical characteristic of circuits, especially of coils, that introduces intertial lag because of the presence of a magnetic field. Measured in henrys.</text> </content> <name></name> <script></script> </card> card_33706.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>33706</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>initial time-delay gap</text> </content> <content> <layer>background</layer> <id>3</id> <text>The time gap between the arrival of the direct sound and the first sound reflected from the surfaces of the room.</text> </content> <name></name> <script></script> </card> card_34047.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>34047</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>intensity</text> </content> <content> <layer>background</layer> <id>3</id> <text>Acoustic intensity is sound energy flux per unit area. The average rate of sound energy transmitted through a unit area normal to the direction of sound transmission.</text> </content> <name></name> <script></script> </card> card_34544.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>34544</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>interference</text> </content> <content> <layer>background</layer> <id>3</id> <text>The combining of two or more signals results in an interaction called interference. This may be constructive or destructive. Another use of the term is to refer to undesired signals.</text> </content> <name></name> <script></script> </card> card_34701.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>34701</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>intermodulation distortion</text> </content> <content> <layer>background</layer> <id>3</id> <text>Distortion produced by the interaction of two or more signals. The distortion components are not harmonically related to the original signals.</text> </content> <name></name> <script></script> </card> card_34828.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>34828</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>inverse-square law</text> </content> <content> <layer>background</layer> <id>3</id> <text>See spherical divergence.</text> </content> <name></name> <script></script> </card> card_35304.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>35304</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ITD</text> </content> <content> <layer>background</layer> <id>3</id> <text>Initial time-delay gap.</text> </content> <name></name> <script></script> </card> card_35365.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>35365</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>JAES</text> </content> <content> <layer>background</layer> <id>3</id> <text>Journal of the Audio Engineering Society.</text> </content> <name></name> <script></script> </card> card_35627.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>35627</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>JASA</text> </content> <content> <layer>background</layer> <id>3</id> <text>Journal of the Acoustical Society of America.</text> </content> <name></name> <script></script> </card> card_35952.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>35952</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>kHz</text> </content> <content> <layer>background</layer> <id>3</id> <text>1000 Hz.</text> </content> <name></name> <script></script> </card> card_36123.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>36123</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Korner Killer</text> </content> <content> <layer>background</layer> <id>3</id> <text>A proprietary sound-absorbing/diffusing unit for use in corners of rooms.</text> </content> <name></name> <script></script> </card> card_36430.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>36430</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>law of the first wavefront</text> </content> <content> <layer>background</layer> <id>3</id> <text>The first wavefront falling on the ear determines the perceived direction of the sound.</text> </content> <name></name> <script></script> </card> card_36823.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>36823</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>LEDE</text> </content> <content> <layer>background</layer> <id>3</id> <text>Live end dead end.</text> </content> <name></name> <script></script> </card> card_36925.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>36925</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>level</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound pressure level in dB means that it is calculated with respect to the standard reference level of 20 µPa. The word "level" associates that figure with the appropriate standard reference level.</text> </content> <name></name> <script></script> </card> card_37351.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>37351</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>LFD</text> </content> <content> <layer>background</layer> <id>3</id> <text>Low-frequency diffusion.</text> </content> <name></name> <script></script> </card> card_37493.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>37493</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>linear</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device or circuit with a linear characteristic means that a signal passing through it is not distorted.</text> </content> <name></name> <script></script> </card> card_37756.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>37756</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>live end dead end</text> </content> <content> <layer>background</layer> <id>3</id> <text>An acoustical treatment plan for rooms in which one end is highly absorbent and the other end reflective and diffusive.</text> </content> <name></name> <script></script> </card> card_37890.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>37890</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>logarithm</text> </content> <content> <layer>background</layer> <id>3</id> <text>An exponent of 10 in the common logarithms to the base 10. For example, 10 to the exponent 2 = 100; the log of 100 = 2.</text> </content> <name></name> <script></script> </card> card_38291.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>38291</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>loudness</text> </content> <content> <layer>background</layer> <id>3</id> <text>A subjective term for the sensation of the magnitude of sound.</text> </content> <name></name> <script></script> </card> card_38478.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>38478</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>loudspeaker</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electroacoustical transducer that changes electrical energy to acoustical energy.</text> </content> <name></name> <script></script> </card> card_38842.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>38842</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>masking</text> </content> <content> <layer>background</layer> <id>3</id> <text>The amount (or the process) by which the threshold of audibility for one sound is raised by the presence of another (masking) sound.</text> </content> <name></name> <script></script> </card> card_39139.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>39139</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>mean free path</text> </content> <content> <layer>background</layer> <id>3</id> <text>For sound waves in an enclosure, it is the average distance traveled between successive reflections.</text> </content> <name></name> <script></script> </card> card_39384.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>39384</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>microphone</text> </content> <content> <layer>background</layer> <id>3</id> <text>An acoustical-electrical transducer by which sound wave in air may be converted to electrical signals.</text> </content> <name></name> <script></script> </card> card_39639.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>39639</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>middle ear</text> </content> <content> <layer>background</layer> <id>3</id> <text>The cavity between the eardrum and the cochlea housing the ossicles connecting the eardrum to the oval window of the cochlea.</text> </content> <name></name> <script></script> </card> card_39689.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>39689</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>millisecond</text> </content> <content> <layer>background</layer> <id>3</id> <text>One thousandth of a second, abbreviate msec.</text> </content> <name></name> <script></script> </card> card_39948.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>39948</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>mixer</text> </content> <content> <layer>background</layer> <id>3</id> <text>A resistive device, sometimes very elaborate, that is used for combining signals from many sources.</text> </content> <name></name> <script></script> </card> card_40224.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>40224</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>modal resonance</text> </content> <content> <layer>background</layer> <id>3</id> <text>See mode.</text> </content> <name></name> <script></script> </card> card_40632.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>40632</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>A room resonance. Axial modes are associated with pairs of parallel walls. Tangential modes involve four room surfaces and oblique modes all six surfaces. Their effect is greatest at low frequencies and for small rooms.</text> </content> <name></name> <script></script> </card> card_40902.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>40902</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>monaural</text> </content> <content> <layer>background</layer> <id>3</id> <text>See monophonic.</text> </content> <name></name> <script></script> </card> card_41032.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>41032</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>monitor</text> </content> <content> <layer>background</layer> <id>3</id> <text>Loudspeaker used in the control room of a recording studio.</text> </content> <name></name> <script></script> </card> card_41419.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>41419</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>monophonic</text> </content> <content> <layer>background</layer> <id>3</id> <text>Single-channel sound.</text> </content> <name></name> <script></script> </card> card_41479.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>41479</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>multitrack</text> </content> <content> <layer>background</layer> <id>3</id> <text>A system of recording multiple tracks on magnetic tape or other media. The signals recorded on the various tracks are then "mixed down" to obtain the final recording.</text> </content> <name></name> <script></script> </card> card_42080.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>42080</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>NAB</text> </content> <content> <layer>background</layer> <id>3</id> <text>National Association of Broadcasters.</text> </content> <name></name> <script></script> </card> card_42374.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>42374</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>noise</text> </content> <content> <layer>background</layer> <id>3</id> <text>Interference of an electrical or acoustical nature. Random noise is a desirable signal used in acoustical measurements. Pink noise is random noise whose spectrum falls at 3 dB per octave: it is useful for use with sound analyzers with constant percentage bandwidths.</text> </content> <name></name> <script></script> </card> card_42718.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>42718</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>noise criteria</text> </content> <content> <layer>background</layer> <id>3</id> <text>Standard spectrum curves by which a given measured noise may be described by a single NC number.</text> </content> <name></name> <script></script> </card> card_42841.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>42841</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>nonlinear</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device or circuit is nonlinear if a signal passing through it is distorted.</text> </content> <name></name> <script></script> </card> card_43028.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>43028</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>normal mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>A room resonance. See mode.</text> </content> <name></name> <script></script> </card> card_43411.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>43411</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>null</text> </content> <content> <layer>background</layer> <id>3</id> <text>A low or minimum point on a graph. A minimum pressure region in a room.</text> </content> <name></name> <script></script> </card> card_43699.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>43699</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>oblique mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>See mode.</text> </content> <name></name> <script></script> </card> card_43942.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>43942</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>octave</text> </content> <content> <layer>background</layer> <id>3</id> <text>The interval between two frequencies having a ratio of 2:1.</text> </content> <name></name> <script></script> </card> card_44188.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>44188</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>oscilloscope</text> </content> <content> <layer>background</layer> <id>3</id> <text>A cathode-ray type of indicating instrument.</text> </content> <name></name> <script></script> </card> card_44393.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>44393</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ossicles</text> </content> <content> <layer>background</layer> <id>3</id> <text>A linkage of three tiny bones providing the mechanical coupling between the eardrum and the oval window of the cochlea consisting of the hammer, anvil, and stirrup.</text> </content> <name></name> <script></script> </card> card_44587.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>44587</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>out of phase</text> </content> <content> <layer>background</layer> <id>3</id> <text>The offset in time of two related signals.</text> </content> <name></name> <script></script> </card> card_44830.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>44830</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>oval window</text> </content> <content> <layer>background</layer> <id>3</id> <text>A tiny membranous window on the cochlea to which the foot plate of the stirrup ossicle is attached. The sound from the eardrum is transmitted to the fluid of the inner ear through the oval window.</text> </content> <name></name> <script></script> </card> card_45275.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>45275</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>overtone</text> </content> <content> <layer>background</layer> <id>3</id> <text>A component of a complex tone having a frequency higher than the fundamental.</text> </content> <name></name> <script></script> </card> card_45377.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>45377</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>partial</text> </content> <content> <layer>background</layer> <id>3</id> <text>One of a group of frequencies, not necessarily harmonically related to the fundamental, which appear in a complex tone. Bells, xylophone blocks, and many other percussion instruments produce harmonically unrelated partials.</text> </content> <name></name> <script></script> </card> card_45662.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>45662</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>passive absorber</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound absorber that dissipates sound energy as heat.</text> </content> <name></name> <script></script> </card> card_45991.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>45991</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>PFC</text> </content> <content> <layer>background</layer> <id>3</id> <text>Phase-frequency curve.</text> </content> <name></name> <script></script> </card> card_46231.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>46231</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>phase</text> </content> <content> <layer>background</layer> <id>3</id> <text>The time relationship between two signals.</text> </content> <name></name> <script></script> </card> card_46482.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>46482</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>phase shift</text> </content> <content> <layer>background</layer> <id>3</id> <text>The time or angular difference between two signals.</text> </content> <name></name> <script></script> </card> card_46790.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>46790</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>phon</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of loudness level of a tone.</text> </content> <name></name> <script></script> </card> card_47027.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>47027</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>pink noise</text> </content> <content> <layer>background</layer> <id>3</id> <text>A noise signal whose spectrum level decreases at a 3-dB-per-octave rate. This gives the noise equal energy per octave.</text> </content> <name></name> <script></script> </card> card_47281.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>47281</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>pinna</text> </content> <content> <layer>background</layer> <id>3</id> <text>The inner ear.</text> </content> <name></name> <script></script> </card> card_47406.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>47406</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>pitch</text> </content> <content> <layer>background</layer> <id>3</id> <text>A subjective term for the perceived frequency of a tone.</text> </content> <name></name> <script></script> </card> card_47821.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>47821</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>place effect</text> </content> <content> <layer>background</layer> <id>3</id> <text>The theory that pitch perception is related to the pattern of excitation on the basilar membrane of the cochlea.</text> </content> <name></name> <script></script> </card> card_47897.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>47897</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>plenum</text> </content> <content> <layer>background</layer> <id>3</id> <text>An absorbent-lined cavity through which conditioned air is routed to reduce noise.</text> </content> <name></name> <script></script> </card> card_48146.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>48146</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>polar pattern</text> </content> <content> <layer>background</layer> <id>3</id> <text>A graph of the directional characteristics of a microphone or loudspeaker.</text> </content> <name></name> <script></script> </card> card_48568.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>48568</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>polarity</text> </content> <content> <layer>background</layer> <id>3</id> <text>The relative position of the high (+) and the low (-) signal leads in an audio system.</text> </content> <name></name> <script></script> </card> card_48709.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>48709</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>PRD</text> </content> <content> <layer>background</layer> <id>3</id> <text>Primitive root diffusor.</text> </content> <name></name> <script></script> </card> card_49036.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>49036</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>preamplifier</text> </content> <content> <layer>background</layer> <id>3</id> <text>An amplifier designed to optimize the amplification of weak signals, such as from a microphone.</text> </content> <name></name> <script></script> </card> card_49268.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>49268</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>precedence effect</text> </content> <content> <layer>background</layer> <id>3</id> <text>For delay time, less than 50 ms, echoes are no longer a noise, even if the echo is stronger than the primary sound. This is also known as the Haas effect.</text> </content> <name></name> <script></script> </card> card_49819.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>49819</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>pressure zone</text> </content> <content> <layer>background</layer> <id>3</id> <text>As sound waves strike a solid surface, the particle velocity is zero at the surface and the pressure is high, thus creating a high-pressure layer near the surface.</text> </content> <name></name> <script></script> </card> card_50076.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>50076</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>psychoacoustics</text> </content> <content> <layer>background</layer> <id>3</id> <text>The study of the interaction of the auditory system and acoustics.</text> </content> <name></name> <script></script> </card> card_50330.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>50330</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>pure tone</text> </content> <content> <layer>background</layer> <id>3</id> <text>A tone with no harmonics. All energy is concentrated at a single frequency.</text> </content> <name></name> <script></script> </card> card_50649.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>50649</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Q-factor</text> </content> <content> <layer>background</layer> <id>3</id> <text>Quality-factor. A measure of the losses in a resonance system. The sharper the tuning curve, the higher the Q.</text> </content> <name></name> <script></script> </card> card_50707.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>50707</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>QRD</text> </content> <content> <layer>background</layer> <id>3</id> <text>Quadratic-residue diffusor.</text> </content> <name></name> <script></script> </card> card_51028.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>51028</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>random noise</text> </content> <content> <layer>background</layer> <id>3</id> <text>A noise signal, commonly used in measurements, which has constantly shifting amplitude, phase, and frequency and a uniform spectral distribution of energy.</text> </content> <name></name> <script></script> </card> card_51440.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>51440</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ray</text> </content> <content> <layer>background</layer> <id>3</id> <text>At higher audio frequencies, sound may be considered to travel in straight lines, in a direction normal to the wavefront.</text> </content> <name></name> <script></script> </card> card_51480.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>51480</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reactance</text> </content> <content> <layer>background</layer> <id>3</id> <text>The opposition to the flow of electricity posed by capacitors and inductors.</text> </content> <name></name> <script></script> </card> card_51831.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>51831</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reactive absorber</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound absorber, such as the Helmholtz resonator which involves the effects of mass and compliance as well as resistance.</text> </content> <name></name> <script></script> </card> card_51968.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>51968</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reactive silencer</text> </content> <content> <layer>background</layer> <id>3</id> <text>A silencer in air-conditioning systems that uses reflection effects for its action.</text> </content> <name></name> <script></script> </card> card_52264.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>52264</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reflection</text> </content> <content> <layer>background</layer> <id>3</id> <text>For surfaces large compared to the wavelength of impinging sound, sound is reflected much as light is reflected, with the angle of incidence equaling the angle of reflection.</text> </content> <name></name> <script></script> </card> card_52627.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>52627</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reflection-phase grating</text> </content> <content> <layer>background</layer> <id>3</id> <text>A diffusor of sound energy using the principle of the diffraction grating.</text> </content> <name></name> <script></script> </card> card_52853.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>52853</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>refraction</text> </content> <content> <layer>background</layer> <id>3</id> <text>The bending of sound waves traveling through layered media with different sound velocities.</text> </content> <name></name> <script></script> </card> card_53243.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>53243</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>resistance</text> </content> <content> <layer>background</layer> <id>3</id> <text>That quality of electrical or acoustical circuits that results in dissipation of energy through heat.</text> </content> <name></name> <script></script> </card> card_53390.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>53390</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>resonance</text> </content> <content> <layer>background</layer> <id>3</id> <text>A natural periodicity, or the reinforcement associated with this periodicity.</text> </content> <name></name> <script></script> </card> card_53566.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>53566</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>resonator silencer</text> </content> <content> <layer>background</layer> <id>3</id> <text>An air-conditioning silencer employing tuned stubs and their resonating effect for its action.</text> </content> <name></name> <script></script> </card> card_53829.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>53829</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>response</text> </content> <content> <layer>background</layer> <id>3</id> <text>See frequency response.</text> </content> <name></name> <script></script> </card> card_54088.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>54088</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reverberation</text> </content> <content> <layer>background</layer> <id>3</id> <text>The tailing off of sound in an enclosure because of multiple reflections from the boundaries.</text> </content> <name></name> <script></script> </card> card_54480.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>54480</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reverberation chamber</text> </content> <content> <layer>background</layer> <id>3</id> <text>A room with hard boundaries used for measuring sound absorption coefficients.</text> </content> <name></name> <script></script> </card> card_54598.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>54598</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>reverberation time</text> </content> <content> <layer>background</layer> <id>3</id> <text>The time required for the sound in an enclosure to decay 60 dB.</text> </content> <name></name> <script></script> </card> card_54823.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>54823</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>RFZ</text> </content> <content> <layer>background</layer> <id>3</id> <text>Reflection-free zone.</text> </content> <name></name> <script></script> </card> card_55157.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>55157</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>ringing</text> </content> <content> <layer>background</layer> <id>3</id> <text>High-Q electrical circuits and acoustical devices have a tendency to oscillate (or ring) when excited by a suddenly applied signal.</text> </content> <name></name> <script></script> </card> card_55388.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>55388</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>room mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>The normal modes of vibration of an enclosed space. See mode.</text> </content> <name></name> <script></script> </card> card_55753.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>55753</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>round window</text> </content> <content> <layer>background</layer> <id>3</id> <text>The tiny membrane of the cochlea that opens in the middle ear that serves as a "pressure release" for the cochlear fluid.</text> </content> <name></name> <script></script> </card> card_55846.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>55846</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>RPG Cloud</text> </content> <content> <layer>background</layer> <id>3</id> <text>Reflection-phase gratings arranged for overhead mounting.</text> </content> <name></name> <script></script> </card> card_56283.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>56283</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>RT60</text> </content> <content> <layer>background</layer> <id>3</id> <text>Reverberation time.</text> </content> <name></name> <script></script> </card> card_56382.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>56382</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sabin</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of sound absorption. One square foot of open window has an absorption of 1 sabin.</text> </content> <name></name> <script></script> </card> card_56702.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>56702</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Sabine</text> </content> <content> <layer>background</layer> <id>3</id> <text>The originator of Sabine reverberation equation.</text> </content> <name></name> <script></script> </card> card_56978.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>56978</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>semicircular canals</text> </content> <content> <layer>background</layer> <id>3</id> <text>The three sensory organs for balance that are a part of the cochlear structure.</text> </content> <name></name> <script></script> </card> card_57554.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>57554</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sequence, maximum length</text> </content> <content> <layer>background</layer> <id>3</id> <text>A mathematical sequence used in determining the well depth of diffusors.</text> </content> <name></name> <script></script> </card> card_57606.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>57606</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sequence, primitive root</text> </content> <content> <layer>background</layer> <id>3</id> <text>A mathematical sequence used in determining the well depth of diffusors.</text> </content> <name></name> <script></script> </card> card_57905.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>57905</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sequence, quadratic residue</text> </content> <content> <layer>background</layer> <id>3</id> <text>A mathematical sequence used in determining the well depth of diffusors.</text> </content> <name></name> <script></script> </card> card_58213.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>58213</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>signal-to-noise ratio</text> </content> <content> <layer>background</layer> <id>3</id> <text>The difference between the nominal or maximum operating level and the noise floor in dB.</text> </content> <name></name> <script></script> </card> card_58443.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>58443</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sine wave</text> </content> <content> <layer>background</layer> <id>3</id> <text>A periodic wave related to simple harmonic motion.</text> </content> <name></name> <script></script> </card> card_58743.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>58743</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>slap back</text> </content> <content> <layer>background</layer> <id>3</id> <text>A discrete reflection from a nearby surface.</text> </content> <name></name> <script></script> </card> card_59063.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>59063</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>solid state</text> </content> <content> <layer>background</layer> <id>3</id> <text>The branch of physics having to do with transistors, etc.</text> </content> <name></name> <script></script> </card> card_59261.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>59261</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sone</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of measurement for subjective loudness.</text> </content> <name></name> <script></script> </card> card_59578.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>59578</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sound absorption coefficient</text> </content> <content> <layer>background</layer> <id>3</id> <text>The practical unit between 0 and 1 expressing the absorbing efficiency of a material. It is determined experimentally.</text> </content> <name></name> <script></script> </card> card_59697.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>59697</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sound power level</text> </content> <content> <layer>background</layer> <id>3</id> <text>A power expressed in dB above the standard reference level of 1 picowatt.</text> </content> <name></name> <script></script> </card> card_59907.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>59907</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sound pressure level</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sound pressure expressed in dB above the standard sound pressure of 20 µPa.</text> </content> <name></name> <script></script> </card> card_60160.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>60160</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>sound spectrograph</text> </content> <content> <layer>background</layer> <id>3</id> <text>An instrument that displays the time, level, and frequency of a signal.</text> </content> <name></name> <script></script> </card> card_60668.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>60668</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>spectrum</text> </content> <content> <layer>background</layer> <id>3</id> <text>The distribution of the energy of a signal with frequency.</text> </content> <name></name> <script></script> </card> card_60692.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>60692</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>spectrum analyzer</text> </content> <content> <layer>background</layer> <id>3</id> <text>An instrument for measuring, and usually recording, the spectrum of a signal.</text> </content> <name></name> <script></script> </card> card_61000.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>61000</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>specularity</text> </content> <content> <layer>background</layer> <id>3</id> <text>A new term devised to express the efficiency of diffraction-grating types of diffusors.</text> </content> <name></name> <script></script> </card> card_61305.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>61305</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>spherical divergence</text> </content> <content> <layer>background</layer> <id>3</id> <text>Sound diverges sperically from a point source in free space.</text> </content> <name></name> <script></script> </card> card_61506.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>61506</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>splaying</text> </content> <content> <layer>background</layer> <id>3</id> <text>Walls are splayed when they are constructed somewhat "off square", ie, a few degrees from the normal rectilinear form.</text> </content> <name></name> <script></script> </card> card_61719.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>61719</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>standing wave</text> </content> <content> <layer>background</layer> <id>3</id> <text>A resonance condition in an enclosed space in which sound waves traveling in one direction interact with those traveling in the opposite direction, resulting in a stable condition.</text> </content> <name></name> <script></script> </card> card_62152.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>62152</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>steady-state</text> </content> <content> <layer>background</layer> <id>3</id> <text>A condition devoice of transient effects.</text> </content> <name></name> <script></script> </card> card_62370.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>62370</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>stereo</text> </content> <content> <layer>background</layer> <id>3</id> <text>A stereophonic system with two channels.</text> </content> <name></name> <script></script> </card> card_62677.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>62677</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>superposition</text> </content> <content> <layer>background</layer> <id>3</id> <text>Many sound waves may traverse the same point in space, the air molecules responding to the vector sum of the demands of the different waves.</text> </content> <name></name> <script></script> </card> card_62753.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>62753</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>synthesizer</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electronic musical instrument.</text> </content> <name></name> <script></script> </card> card_63167.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>63167</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>T60</text> </content> <content> <layer>background</layer> <id>3</id> <text>See RT60.</text> </content> <name></name> <script></script> </card> card_63356.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>63356</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>tangential mode</text> </content> <content> <layer>background</layer> <id>3</id> <text>A room mode produced by reflections off four of the six surfaces of the room.</text> </content> <name></name> <script></script> </card> card_63510.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>63510</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>TDS</text> </content> <content> <layer>background</layer> <id>3</id> <text>Time-delay spectrometry.</text> </content> <name></name> <script></script> </card> card_63799.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>63799</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>TEF</text> </content> <content> <layer>background</layer> <id>3</id> <text>Time, energy-frequency.</text> </content> <name></name> <script></script> </card> card_64002.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>64002</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>threshold of feeling (pain)</text> </content> <content> <layer>background</layer> <id>3</id> <text>The sound pressure level that makes the ears tickle, located about 120 dB above the threshold of hearing.</text> </content> <name></name> <script></script> </card> card_64283.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>64283</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>threshold of hearing</text> </content> <content> <layer>background</layer> <id>3</id> <text>The lowest level sound that can be perceived by the human auditory system. This is close to the standard reference level of sound pressure, 20 µPa.</text> </content> <name></name> <script></script> </card> card_64720.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>64720</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>timbre</text> </content> <content> <layer>background</layer> <id>3</id> <text>The quality of a sound related to its harmonic structure.</text> </content> <name></name> <script></script> </card> card_65092.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>65092</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>time-delay spectrometry</text> </content> <content> <layer>background</layer> <id>3</id> <text>A sophisticated method for obtaining anechoic results in echoic spaces.</text> </content> <name></name> <script></script> </card> card_65425.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>65425</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>tone</text> </content> <content> <layer>background</layer> <id>3</id> <text>A tone results in an auditory sensation of pitch.</text> </content> <name></name> <script></script> </card> card_65632.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>65632</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>tone burst</text> </content> <content> <layer>background</layer> <id>3</id> <text>A short signal used in acoustical measurements to make possible differentiating desired signals from spurious reflections.</text> </content> <name></name> <script></script> </card> card_65850.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>65850</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>tone control</text> </content> <content> <layer>background</layer> <id>3</id> <text>An electrical circuit to allow adjustment of frequency response.</text> </content> <name></name> <script></script> </card> card_66237.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>66237</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>transducer</text> </content> <content> <layer>background</layer> <id>3</id> <text>A device for changing electrical signals to acoustical or vice versa, such as a microphone or loudspeaker.</text> </content> <name></name> <script></script> </card> card_66457.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>66457</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>transient</text> </content> <content> <layer>background</layer> <id>3</id> <text>A short-lived aspect of a signal, such as the attack and decay of musical tones.</text> </content> <name></name> <script></script> </card> card_66636.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>66636</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>treble</text> </content> <content> <layer>background</layer> <id>3</id> <text>The higher frequencies of the audible spectrum.</text> </content> <name></name> <script></script> </card> card_66861.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>66861</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>Tube Traps</text> </content> <content> <layer>background</layer> <id>3</id> <text>Proprietary sound-absorbing units.</text> </content> <name></name> <script></script> </card> card_67215.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>67215</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>volume</text> </content> <content> <layer>background</layer> <id>3</id> <text>Colloquial equivalent of sound level.</text> </content> <name></name> <script></script> </card> card_67578.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>67578</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>watt</text> </content> <content> <layer>background</layer> <id>3</id> <text>The unit of electrical or acoustical power.</text> </content> <name></name> <script></script> </card> card_67605.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>67605</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>wave</text> </content> <content> <layer>background</layer> <id>3</id> <text>A regular variation of an electrical signal or acoustical pressure.</text> </content> <name></name> <script></script> </card> card_67905.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>67905</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>wavelength</text> </content> <content> <layer>background</layer> <id>3</id> <text>The distance a sound wave travels in the time it takes to complete one cycle.</text> </content> <name></name> <script></script> </card> card_68308.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>68308</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>weighting</text> </content> <content> <layer>background</layer> <id>3</id> <text>Adjustment of sound-level meter responses to achieve a desired measurement.</text> </content> <name></name> <script></script> </card> card_68421.xml <?xml version="1.0" encoding="utf-8" ?> <!DOCTYPE card PUBLIC "-//Apple, Inc.//DTD card V 2.0//EN" "" > <card> <id>68421</id> <filler1>0</filler1> <cantDelete> <false /> </cantDelete> <showPict> <true /> </showPict> <dontSearch> <false /> </dontSearch> <owner>2688</owner> <link rel="stylesheet" type="text/css" href="stylesheet_3181.css" /> <content> <layer>background</layer> <id>2</id> <text>white noise</text> </content> <content> <layer>background</layer> <id>3</id> <text>Random noise having uniform distribution of energy with frequency.</text> </content> <name></name> <script></script> </card>