User`s guide

Configuring Audio Support
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Note: For each MFCODEC input pair, its source choice (src_i) has a possible value of 1,
2, 3, or 4. However, as noted previously, these four source choices are not always
available for each input type. For instance, if analog was selected for a particular
MFCODEC input pair on the vtr.media.audio.input.channel_map.source
control, the only valid value for the source is 1.
Channel Map Examples
This section lists examples of audio channel mapping in the
/usr/vtr/config/device-defaults/MFCODEC_n file.
Example 3-1 shows the default and maps embedded Inputs 1–3 to MFCODEC Inputs 0–2
and analog Input 1 (IN 1/L) to MFCODEC Input 3.
Example 3-1 Default Audio Channel Mapping
vtr.media.audio.input.channel_map.source EEEA
vtr.media.audio.input.channel_map.channel_pair 1231
Example 3-2 maps embedded Input 1 to MFCODEC Inputs 0-1, embedded Input 3 to
MFCODEC Input 2, and analog Input 1 (IN 1/L) to MFCODEC Input 3. This provides
VTR-like audio control.
Example 3-2 VTR-Like Audio Control Mapping
vtr.media.audio.input.channel_map.source EEEA
vtr.media.audio.input.channel_map.channel_pair 1131
Example 3-3 maps AES/EBU Inputs 2–3 to MFCODEC Inputs 0–1, embedded Input 1 to
MFCODEC Input 2, and analog Input 1 (IN 1/L) to MFCODEC Input 3.
Example 3-3 Mapping of AES/EBU, Embedded, and Analog Audio
vtr.media.audio.input.channel_map.source DDEA
vtr.media.audio.input.channel_map.channel_pair 2311