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-- card: 140794 from stack: in -- bmap block id: 293328 -- flags: 0000 -- background id: 5956 -- name: -- part 1 (field) -- low flags: 01 -- high flags: 0004 -- rect: left=33 top=204 right=311 bottom=479 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 0 -- font id: 3 -- text size: 10 -- style flags: 0 -- line height: 13 -- part name: theCaption -- part 70 (field) -- low flags: 01 -- high flags: 0002 -- rect: left=345 top=22 right=41 bottom=463 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 1 -- font id: 0 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: theHeading ----- HyperTalk script ----- on mouseDown popMenuArticle end mouseDown -- eat the mouseUp on mouseUp end mouseUp -- part 71 (field) -- low flags: 01 -- high flags: 0004 -- rect: left=354 top=318 right=340 bottom=456 -- title width / last selected line: 0 -- icon id / first selected line: 0 / 0 -- text alignment: 1 -- font id: 3 -- text size: 9 -- style flags: 0 -- line height: 15 -- part name: thePage -- part 72 (button) -- low flags: 00 -- high flags: 0000 -- rect: left=353 top=317 right=338 bottom=386 -- title width / last selected line: 0 -- icon id / first selected line: 1014 / 1014 -- text alignment: 1 -- font id: 0 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: Up ----- HyperTalk script ----- on mouseUp doArticleUpButton end mouseUp -- part 73 (button) -- low flags: 00 -- high flags: 0000 -- rect: left=423 top=317 right=338 bottom=453 -- title width / last selected line: 0 -- icon id / first selected line: 1013 / 1013 -- text alignment: 1 -- font id: 0 -- text size: 12 -- style flags: 0 -- line height: 16 -- part name: Down ----- HyperTalk script ----- on mouseUp doArticleDownButton end mouseUp -- part contents for background part 5 ----- text ----- Picture -- part contents for background part 12 ----- text ----- Musical Applications of Microprocessors -- part contents for background part 26 ----- text ----- 14111026 -- part contents for card part 1 ----- text ----- A block diagram of a complete computerized audio-to-digital and back to audio again conversion system. If the two low-pass filters are matched and have infinite attenuation beyond one-half of the sample rate, the waveforms at points A and B are exactly alike! Since the waveform at point A is not audibly different from the input, this is truly a high-fidelity system. The computer could also be programmed to supply its own stream of numbers to the DAC, and it therefore follows that the computer can produce any sound. -- part contents for background part 25 ----- text ----- • WHOLE EARTH • MUSIC • LEARNING & EARNING • Music Theory -- part contents for background part 28 ----- text ----- X -- part contents for card part 70 ----- text ----- Menu -- part contents for card part 71 ----- text ----- 5 of 6 -- part contents for background part 34 ----- text ----- card id 168793 -- part contents for background part 35 ----- text ----- card id 141509 -- part contents for background part 36 ----- text ----- stack "WHOLE EARTH" stack "MUSIC" card id 267220 card id 278889 -- part contents for background part 31 ----- text ----- card id 278889 -- part contents for background part 32 ----- text ----- card id 189120 -- part contents for background part 33 ----- text ----- card id 188142