Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 116)

116 MAESTRO — Automation Interface Protocol Technical Reference Manual
Section 5 — Definition of Extended Maestro Commands
MAESTRO_BACKGROUND_AUDIO_GAIN
Hex definition Mnemonic
0x11 MAESTRO_BACKGROUND_AUDIO_GAIN
Command format:
MAESTRO_BACKGROUND_AUDIO_GAIN
Query format:
READ MAESTRO_BACKGROUND_AUDIO_GAIN
Reply format:
IFRE MAESTRO_BACKGROUND_AUDIO_GAIN
Use applicable with UPDATE:
Yes
Argument definitions:
<destInputBus> = 0-2
0 = Preset IB_PRESET
1 = Program IB_PROGRAM
2 = Auxiliary IB_AUXILIARY
<groupMask> = 4 bytes (Most Significant Bit first)
Bit 0 = VIDEO VIDEOGROUP
1 = Audio Group 1 AUDIOGROUP1
2 = Audio Group 2 AUDIOGROUP2
…
15 = Audio Group 15
AUDIOGROUP15
16 = Audio Group 16 AUDIOGROUP16
= 0-0x1FE (2 hex bytes, MSB first). The range is from 0-0x1FE which corresponds to -24 dB to +24 dB in
0.1 dB increments.