Apple Final Cut Pro 7 - Manual (Page 990)

Exporting Audio Tracks as Individual Audio Files
When you export an audio track in your sequence, the new audio file becomes a
continuous audio file the length of the sequence. All the clips in that track are merged
into a single, continuous media file.
To export a single audio track as an audio file
1 Option-click the Track Visibility control next to the audio track you want to export.
If more than one track is enabled, the enabled tracks are mixed together during export.
Option-clicking the Track Visibility control for a track disables playback for all other audio
tracks.
All other tracks
are disabled.
Make sure just the audio
track you want to export
is enabled (green).
2 Choose File > Export > Using QuickTime Conversion.
3 In the Save dialog, choose a location and enter a name for the file.
4 Choose AIFF or WAVE from the Format pop-up menu.
AIFF is the standard audio file format for Mac OS X. If you’re delivering audio files to
Windows users, you may want to use the WAVE format.
5 Click Options.
990 Chapter 60 Exporting Audio for Mixing in Other Applications