The AudioClip rollout lets you specify the name and characteristics of an audio file that can be used by the Sound helper.
The rollout contains the following options:
URL: Specifies the location/file name of the sound to use. Either .wav or .mid files can be used, but midi sound files may not be spatialized.
Description: Lets you enter a text description of the sound, which is displayed by some browsers.
Pitch: Sets the relative pitch of the sound. 1.0 is normal pitch, 0.5 is one octave lower, and 2.0 is one octave higher than normal.
Loop: Repeats the sound.
Start on World Load: Starts playing the sound as soon as the world is loaded into the browser.
Icon Size: Determines the size of the AudioClip helper in the scene.