Export audio only
You can export your project’s audio using the Export Audio command. You might want to do this to create a single audio file that contains a mix of all the project’s audio tracks.
Note: When you export your project, the audio is exported according to the current audio settings in the Export dialog. You can change the default exported audio sample rate via the Audio MIDI Setup application in OS X. To do so, quit Motion, then in the Finder, choose Go > Utilities and open the Audio MIDI Setup application. In the Output pane, specify a new sample rate. When you reopen Motion, the chosen sample rate appears in the Motion Export dialog.
Export your project’s audio by itself
Choose Share > Export Audio.
Click the Export pop-up menu, then choose an audio format.
Select the “Open with [application]” checkbox to have the exported movie open in its default application.
The default application depends on the audio format you chose in step 2:
AAC and MP3 files open in iTunes.
AIFF, CAF, and WAVE files open in QuickTime.
AC3 files open in Compressor (or in the application set by the Finder as the default application for AC3 files). For more information on the Finder, see Mac Help (in the Finder, choose Help > Mac Help).
If you’ve set In and Out points in the Timeline, click the Duration pop-up menu, then choose whether to export the sequence or the portion between the In and Out points.
To see details about files to be output, click Summary.
Enter a name for the audio file, choose a save location, then click Save.
Your audio file is rendered and saved.
Note: The number of audio files exported depends on the setting of the output channel pop-up menu in the Master track area at the bottom of the Audio list. If the menu is set to stereo, a single stereo file is output. If it is set to 5.2, six separate audio files are exported, corresponding to each surround track. For more information, see Select output channels.