Matrox MXO2 PCIe Host Adapter - Manual (Page 297)

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Specifying your capture format settings
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File Type Specifies the type of audio files to be captured:
• AAC Captures AAC audio to separate .aac files (for Matrox .264 files
only).
• WAV Captures PCM audio to separate .wav files. For Matrox .mp4
files, stereo AAC audio will also be embedded in the .mp4 file.
• Matrox MP4 Captures stereo AAC audio that is embedded in the
Matrox .mp4 file (separate .wav files will not be created).
¦ Note When capturing to a Matrox .mp4 file with simultaneous capture to a
Matrox MPEG-2 I-frame .avi file, stereo audio will be embedded in the .mp4
and .avi files. When capturing to a Matrox .avi file only, audio is always
captured to separate .wav files, and the channels that you choose to save to the
first stereo .wav file or first two mono .wav files will be embedded in the
associated .avi file.
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Channel Type Select Stereo to save your captured audio to stereo
files, or Mono to save your captured audio to mono files. This is set to
Stereo for embedded AAC audio in Matrox .mp4 files.
$
Format Select the format for your captured audio ( 16-bit or 24-bit ).
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AAC bit rate For AAC audio, drag the bit rate slider to select the bit
rate (in kilobits per second) that you want for your captured audio.
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From the Filename lists, select which stereo pairs or mono channels you
want to capture for each file.
• When capturing to a Matrox .mp4 file with only embedded AAC audio,
you can select one stereo pair to be embedded in the .mp4 file (only one
Filename list will be available). When capturing to a Matrox .mp4 file
with separate .wav files, the channels that you choose to save to the first
stereo .wav file or first two mono .wav files will be embedded in the
associated .mp4 file, and the associated .avi file if you’re
simultaneously capturing to a Matrox MPEG-2 I-frame .avi file.
• When capturing to separate .aac or .wav files, you can select up to four
stereo channels or up to eight mono channels, depending on the type of
audio being captured. Select
None for the particular files that you
don’t want, or click the D (default) button for each Filename list if you
want to capture only channels 1 and 2. When Matrox MXO2 saves
separate audio files, it assigns a
.Stereo or .Mono suffix to the base
name of the associated video file. For example, if you’re capturing to
separate
.wav files and your video file is named MyFile.001.264 , the
associated stereo audio files will be named MyFile.001.Stereo1.wav ,
MyFile.001.Stereo2.wav , etc.
3 Under Automatic File Switch , you can indicate whether you want the
capture to automatically switch to the next clip after a specified time or file