Exporting to aac/podcast files – Apple Soundtrack Pro 2 User Manual
Page 401
Chapter 16
Exporting Multitrack Projects
401
 Sample Rate pop-up menu: The sample rate is the number of times an analog signal is
measured—or sampled—per second. The higher the sample rate, the higher the
quality and the larger the file size, but don’t choose a sample rate higher than the
rate used in your multitrack project or you’ll waste space.
 Channels pop-up menu: If your project is monaural or if the target playback device is
mono, choose Mono. (Mono files are about half the size of stereo files.) If your project
output is in stereo and the target playback device is stereo, choose Stereo.
 Joint Stereo: When deselected, your MP3 files contain one track for the right stereo
channel and one track for the left. In many cases, the two channels contain related
information. When the Joint Stereo checkbox is selected, one channel carries the
information that’s identical on both channels, and the other channel carries the
unique information. At bit rates of 160 Kbps and below, this can improve the sound
quality of your converted audio.
 Smart Encoding Adjustments: Select this to have Compressor analyze your encoding
settings and music source, and then adjust settings to maximize quality.
 Filter Frequencies Below 10 Hz: Filtering inaudible frequencies results in smaller, more
efficient files without perceptible loss of quality.
5
You can optionally use the After Export pop-up menu to choose a post-export action.
For information about post-export actions, see “
6
Type a name for the exported file, and browse to the location where you want to save
the file.
7
Click Export.
Exporting to AAC/Podcast Files
AAC (Advanced Audio Coding) provides audio encoding that compresses much more
efficiently than older formats, such as MP3, yet delivers higher-quality results with
smaller file sizes. AAC is the default audio format for theiPod and iTunes, as well as the
default audio codec for the .m4v format used in all video files sold on iTunes.
To export a master mix as an AAC/Podcast file:
1
Choose File > Export (or press Command-E).
The Export dialog appears.
2
Choose Master Mix from the Exported Items pop-up menu.
Note: You can also use an export preset to export a master mix. For more information
about using export presets and the Preset pop-up menu, see “