Apple Soundtrack Pro 3 - Manual (Page 454)

The Channel Layout dialog appears and includes pop-up menus for Left, Right, Center,
LFE, Left Surround, Right Surround, and Center Surround outputs. You can choose the
physical output channel (labeled “Channel 1,” “Channel 2,” and so forth) for each submix.
2 Choose the physical output channel for each channel in the exported project.
Exporting Tracks, Busses, and Submixes Separately
As an alternative to exporting a master mix, you can export the component parts of your
multitrack project as individual files or as groups of files. These options are available for
AIFF, WAVE, NeXT, and SoundDesigner II export files.
Note: Muted tracks, busses, and submixes are excluded from all of the following export
combinations.
To export component parts of a multitrack project
1 Choose File > Export (or press Command-E).
The Export dialog appears.
2 If you want, choose an export preset from the Preset pop-up menu to export a master
mix.
For more information, see Using Export Presets .
3 Choose any option from the Exported Items pop-up menu, except Master Mix.
454 Chapter 20 Exporting Multitrack Projects