User Manual

Audio Project Settings
1355
Audio File Format Defines the file format for audio:
• WAVE (OMF): Compatible with Windows applications.
• AIFF-C (OMF): Compatible with many third-party applications, including Pro
Tools.
• PCM (MXF): Enables easy exchange of material between servers, tape streamers,
and digital archives.
Select WAVE or AIFF-C for all audio media when you need to transfer audio media files
directly to a Pro Tools system for audio sweetening.
n
Media Composer has limited support for Sound Designer II
™
audio. For more
information, see “Transferring and Working with Sound Designer II Audio Files
from Macintosh Systems” on page 1129.
Bit Depth Defines the sample size you use when you work with audio files:
• 16 Bit: For CD-quality audio.
• 24 Bit: For work with higher resolution audio.
DV Audio Pattern Controls whether variation in the audio sample rate is allowed. Select the option
expected by your device.
• Unlocked Audio: Allows some imprecision in the audio sample rate, with a variation
of up to +/– 25 audio samples per frame.
• Locked Audio: Keeps the audio clock locked precisely to the video clock, so exactly
the same number of audio samples and video frames are recorded or transmitted in
each cycle of the phase relationship.
Depending on your Avid input/output hardware, this option might be unavailable
because the option is automatically selected depending on the deck template you
choose. The option is set to Locked Audio for DVCPro device templates, and to
Unlocked Audio for all other device templates.
Convert Sample Rates
When Playing
Controls whether or not your Avid editing application performs on-the-fly sample rate
conversion of segments that do not match the rate defined in Sample Rate.
• Never: Your Avid editing application does not perform sample rate conversion
(segments play as silence).
• Always: Your Avid editing application attempts to perform a sample rate conversion.
The resulting audio quality might not be useful for a finished project, but can be
useful during an editing session because it prevents audio from playing back with
silence.
For information on changing the sample rate for individual sequences and audio clips,
see “Changing the Audio Sample Rate for Sequences and Audio Clips” on page 834.
Option Description