Grass Valley iTX System v.2.6 - Manual (Page 205)

Configuring the audio output for a playout channel
Different types require different numbers of channels.
Audio Type Type No. Channels Description
DolbyD (Auto) 0 2 Dolby Digital data. Depending on the source
tracks used, when decoded this may give:
–
Either 5.1 surround-sound channels (AC-3
3/2).
– Or a stereo downmix (AC-3 2.0).
DolbyD 2.0 8 2 Dolby Digital data (AC-3 2.0).
Source audio that has 5.1 channels is
downmixed.
DolbyE 5.1+2 10 2 Dolby E data. When decoded, this gives 5.1
surround-sound channels and 2 other channels.
The output is available only when the source
audio is Dolby E 5.1+2.
DolbyE 5.1 11 2 Dolby E data. When decoded, this gives 5.1
surround-sound channels.
The output is available only when the source
audio has 6 channels.
DolbyE (Auto) 12 2 Dolby E data. Depending on the source tracks
used, when decoded this may give:
–
Either 5.1 surround-sound channels.
– Or two stereo pairs (2+2), with silence on the
second pair.
Raw (2 Ch) 1 2 Content from a source audio track that passes
through the audio processor without change
(there is no de-coding or mixing of the content).
The track may contain two PCM channels, a pair
of Dolby Digital data channels or a pair of Dolby
E data channels.
PCM (Auto) 4 1, 2, 4, 6, 8
or 16
Discrete PCM channels. The number of output
channels depends on the number of source
channels.
PCM 5.1 9 6 Six discrete PCM channels from a 5.1 source
track.
PCM Stereo 5 2 PCM stereo (left/right) pair.
PCM Mono 6 1
(in a channel
pair)
PCM mono.
Source tracks of single mono channels must be
paired for playout in a stereo track.
March 2015 System Administrator Guide Page 205 of 404