Extron electronic DSC HD-3G A, DSC 3G-HD A Audio Format, Details, Model, Audio Channels, Group

Audio Format	Details	Model
Selection
None	Mutes all audio for the input.	Both
Analog	The audio from the 5-pole captive screw input	DSC 3G-HD A
	port is embedded in the HDMI output.
Analog	The audio from the 5-pole captive screw input	DSC HD-3G A
	port is embedded in the SDI output.
2CH Digital	Lets you select one pair of AES channels from	DSC 3G-HD A
(Default)	the available eight pairs. If a format other than
	two-channel digital is selected for the audio
	format, the menu to select the pair is disabled
	(see “Audio channels”).
LPCM-2Ch	Displays the selected HDMI input with a PCM	DSC HD-3G A
(Default)	two-channel EDID.
8CH Digital	Lets you select up to four pairs (eight	DSC 3G-HD A
	channels) of AES audio to be embedded in
	the HDMI output (see “Audio channels” ).
Multi-Ch	Displays the HDMI input with a multi-channel	DSC HD-3G A
	EDID (supports only multi-channel PCM
	audio).
SDI Audio Decode	Lets you select a pair of audio channels to	DSC 3G-HD A
	decode from a selected group.

•Audio Mute — This option lets you mute and unmute global audio. Press any arrow key to toggle between Off (default) and On.

•Input Gain / Attenuation — Select this option to set the gain and attenuation for analog audio inputs only (the range is -18 dB to +12 dB). The decibel level can be adjusted in increments of 1.0 dB. The default is 0 dB.

•SDI Decode Audio — (DSC 3G-HD A only) Select this option to select which pair of audio channels to decode and embed. Using this option or SIS commands (see the AES Audio Channel Selection and AES Audio Channel Group Selection commands on page 58), you can pick a group and a channel pair within that group.

Audio Channels

On the DSC 3G-HD A you can select channel pairs to embed, in addition to the audio input format. On the DSC HD-3G A, input format selection is available, but channel selection is not.

DSC 3G-HD A: Selecting Audio Channel Pairs

The available formats (modes) for the DSC 3G-HD A are analog, two-channel digital, and eight-channel digital. In two-channel mode, one of the eight channel pairs is embedded in the HDMI output. In eight-channel mode, four pairs are embedded.

The 16 channels are divided into four groups, each consisting of two channel pairs (four channels). The table below shows the channels contained within each group.

Group 1

Group 2

Group 3

Group 4

Ch Pair 1

Ch Pair 2

Ch Pair 1

Ch Pair 2

Ch Pair 1

Ch Pair 2

Ch Pair 1

Ch Pair 2

Ch 1

Ch 2

Ch 3

Ch 4

Ch 5

Ch 6

Ch 7

Ch 8

Ch 9

Ch 10

Ch 11

Ch 12

Ch 13

Ch 14

Ch 15

Ch 16

DSC 3G-HD A and DSC HD-3G A • Operation 30