Lets you specify audio characteristics for the AVI file that you are creating. The audio format includes the sampling frequency, the sample size, and the number of audio channels used in the movie. The characteristics of the Source file and the characteristics you have selected for the Destination file are listed at the top of the Audio Options box.
Convert Audio
Indicates that you want to convert the audio track in the QuickTime movie. If this option is not selected, audio is not included in the converted file.
Settings Button
Selecting this button displays the Audio Settings dialog box.