Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
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signal_activity_thresh
Signal Activity Threshold
Description
This parameter sets the threshold for the signal activity meter.
trim
Gain Trim For Virtual Channels
Description
This parameter applies gain (in the analog domain) to the individual compo-
nents of a virtual channel. The index indicates to which physical channel of the
virtual channel the trim will be applied. For example, indices 1 and 2 corre-
spond to the left and right physical channels of a stereo virtual channel.
Argument Argument value
Channel Type Global System
Value Type Floating-Point
Read/Write Mode Read/Write
System Limits Minimum: -100.0, Maximum: 20.0, Resolution: 0.1
Default -20.0
User Limits
supported
No
Event Source No
Argument Argument value
Channel Type Virtual Channel
Value Type Floating-Point
Read/Write Mode Read/Write
Phys Chans
Conferencing Mic/Line Input, Conferencing Line Output,
Sound Reinforcement Mic/Line Input, Sound Reinforcement
Line Output
Virt Chans Stereo
Indices 1-32: Physical channel
System Limits Minimum: -20.0, Maximum: 20.0, Resolution: 0.5
Default 0.0
User Limits
Supported
No
Event Source No