Apple Logic Pro 9 - Manual (Page 1016)

The audio file is opened as a new audio file project in Soundtrack Pro. The new audio file
project is automatically named after the original audio file, with the file extension .stap.
4 Edit the audio file in Soundtrack Pro.
Note: Do not flatten the file.
5 Save the file to your chosen location, specified in the Save dialog.
Soundtrack Pro saves both an STAP file and a flattened version of the file in the original
location.
6 Switch back to Logic Pro.
Logic Pro notices that the flattened file has changed and updates accordingly.
For any future editing to this audio file in Soundtrack Pro, Soundtrack Pro opens the STAP
project instead of the flattened audio file.
Exporting Individual Regions as Audio Files
You can export an audio or MIDI region as a new audio file.
Note: Rendering with no volume and pan automation is generally desirable, as the export
functions are most commonly used to transfer your tracks or regions to an external
application for processing, mixing, or editing.
To export an audio or MIDI region as an audio file
1 Click a region in the Arrange area.
2 Choose File > Export > Region as Audio File.
1016 Chapter 32 Project and File Interchange