Grass Valley Maestro Master Control Reference Manual v.2.4.0 - Manual (Page 60)

60 MAESTRO — Automation Interface Protocol Technical Reference Manual
Section 4 — Definition of Supported Saturn Commands
Ratio (audio mixer to main ratio)
Hex definition Mnemonic
AA RATIO
Command format:
RATIO <audio level>
Query format:
READ RATIO
Reply format:
IFRE RATIO <audio level>
Use applicable with UPDATE:
Yes
Argument definitions:
<
audio level> = 0-99 (base 10) percent of full-scale
Maestro applicability:
Applies only to Over 1.
Command: The specified <audio level> is applied to all Audio Groups that support ratio on both Program and Preview.
Query: Reports the <audio level> associated with Audio Group 1.