Apple Final Cut Pro 6 - Manual (Page 1848)

Chapter 27 Sequence Settings and Presets 365
IV
 Depth: Choose the bit depth used for each sample.
 8-bit: This bit depth is useful for highly compressed movies created for the web.
Unless you have a specific need for 8-bit audio, you should avoid this option
because the quality is fairly low.
 16-bit: This is the bit depth of DV, DVCAM, and DVCPRO, as well as of music CDs.
If all of your original audio media is 16-bit, and you aren’t routing multiple audio
tracks to the same audio output, choose this option.
 24-bit: A high-resolution bit depth compatible with many third-party video and
audio interfaces. Choose this option to preserve the highest possible quality when
exporting your files, especially when some of your audio files are 24-bit, or when
you are mixing multiple audio channels together by routing them to the same
output channel.
 Config: This pop-up menu works in combination with the Downmix control in the
Audio mixer to determine how the Export QuickTime Movie command groups your
sequence audio outputs during export. There are three options:
 Stereo Downmix: This option exports a stereo mix to a single stereo QuickTime audio
track and overrides the Downmix button in the Audio Mixer.
 Channel Grouped: Based on your sequence’s audio output groupings, multiple
stereo and mono output busses are exported to corresponding stereo and mono
QuickTime tracks.
 Discrete Channels: This option exports channels in the same way as the Channel
Grouped option, but each channel in the QuickTime movie audio track is labeled as a
discrete channel, numbered according to the audio output bus that the channel is
assigned in your sequence. Use this option when you want to preserve your
sequence’s original audio output assignments in your exported QuickTime file.
For more information about these options, see Volume III, Chapter 2, “Assigning
Output Channels and External Audio Monitors.”
Video Processing Tab for Sequences
You can change color space and motion transformation rendering options in the Video
Processing tab of Sequence Settings. For new sequences, you can change default
settings in the Video Processing tab of the appropriate sequence preset. For detailed
information about the settings in the Video Processing tab, see Volume III, Chapter 29,
“Rendering and Video Processing Settings.”