Matrox MXO2 PCIe Host Adapter - Manual (Page 253)

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Specifying your settings for Matrox ISO recording
connect a source with a different video format, however, you must select
the source’s video format in the
Source Settings dialog box.
• Audio files If you’re recording to separate . wav or .aac audio files, the
audio files are named the same as the video files, except that they also
include the audio channel type (mono or stereo) and an incremental suffix
using the following convention:
basename_input_recordingnumber_channeltypesuffix.wav or .aac
For example, if you’re recording input 1 to separate .wav files with the base
name Record , Audio Channels is set to 8 , and Audio Channel Type is set
to Stereo , the resulting audio files will be named Record_1_0_Stereo1.wav ,
Record_1_0_Stereo2.wav, Record_1_0_Stereo3.wav, and
Record_1_0_Stereo4.wav . If Mono is selected as the Audio Channel Type ,
eight files will be created instead of four, and the files will be named
Record_1_0_Mono1.wav, Record_1_0_Mono2.wav,
Record_1_0_Mono3.wav,
and so on.
Record functionality
This section describes the Matrox ISO recording functionality regarding the
recording session, record time code, and input recording.
Recording session
A recording session begins when you click , and ends when you click .
You must have a valid input signal in order for your selected input to be recorded.
See
“Input recording” on page 229 for the input recording methods.
¡ Important If the status light turns red when recording, this indicates that one
or more of the selected inputs experienced dropped or skipped frames. After the
recording session ends, check the
Record.Log file to see the dropped/skipped
events for the recording session (see “Record log file” on page 232 ).
Record time code
Starting a recording session also starts the record time code for a selected input.
Depending on the video input frame rate, the time code is displayed in either drop
frame (HH:MM:SS;FF) or non-drop frame (HH:MM:SS:FF) SMPTE format.
Drop frame format is used for NTSC, 23.98 fps, 29.97 fps, and 59.94 fps video,
and non-drop frame format is used for all other video frame rates, such as PAL
and 25 fps. If you select an input at any time during a recording session, the
record time code for that input starts when you select the input. A recording’s
time code stops only when the recording ends for that input. See
“Input
recording” on page 229 for information on stopping an input recording.
Input recording
This section describes the various ways of recording an input source, and
stopping an input recording.