Apple Motion 2 - Manual (Page 878)

878 Chapter 13 Working With Audio
You can add keyframes for volume and pan to an audio track and trim an audio track in
the Audio Editor. You can also trim an audio track in the Timeline.
You can export audio with video, or export audio alone, in a variety of formats. See
“
Exporting Audio ” on page 898 for a list of the audio export formats Motion supports.
If you have Soundtrack Pro installed, an audio file that exists in a Motion project can be
opened and modified in Soundtrack Pro. The modified file is automatically updated in
Motion. For more information, see “
Using Soundtrack
Pro With Motion
” on page 897.
Audio Files in Motion Projects
You can add different kinds of audio files to a Motion project. In addition, Motion lets
you preview files before adding them to your project and lets you view the audio files
in a project in several ways.
Import File Formats
Motion supports audio in a variety of common file formats, sample rates, and bit
depths. Supported import file formats include:
• AIFF
• WAV
• MP3
• AAC (except rights-protected AAC files)
• QuickTime Audio (.mov)
Note: Multi-track QuickTime movie files are also supported.
You can import audio files with sample rates up to 192 kHz, and with bit depths up to
32 bits. Mono and stereo files are supported. Multi-channel audio files are also
supported.
Note: Since MP3 and AAC are compressed file formats, playback quality may not be as
high as with uncompressed formats such as AIFF.
The Audio Editor
01112.book Page 878 Sunday, March 13, 2005 10:36 PM