Sierra Video Pro XL Series 8 - Manual (Page 61)

GENERIC PROTOCOL
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AUDINP_GAINS: Audio Input Gain Adjustment
Varname: AUDINP_GAINS
Use: Modify and query input audio gain values.
Routers: SPII, VS
Syntax: G VAR1,AUDINP_GAINS,input_num [,value] ~
Values:
The ‘index’ field is the input number, which can range from 1 to 64.
The ‘value’ field is the audio gain adjustment. This number represents an index into an array of gain
values. The index ranges from 0 which represents the most negative gain value to 41 which represents
the most positive gain value. A value of 20 will set the input gain to unity.
The actual table of values reads as follows:
Index Gain Value Increment
0 to 19 -10.0 to -0.5
one half db
steps
20
0
(Unity gain)
21 to 41 +0.5 to +20.5 one db steps
Example: ** G VAR1, AUDINP_GAINS, 4, 20~!! Set input 4 to unity gain.