Polycom SoundStructure C16 Design Manual page 552

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
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signal_activity_thresh
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 No
supported
Event Source No
Description
This parameter sets the threshold for the signal activity meter.
trim
Argument Argument value
Channel Type Virtual Channel
Value Type Floating-Point
Read/Write Mode Read/Write
Conferencing Mic/Line Input, Conferencing Line Output,
Phys Chans 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 No
Supported
Event Source No
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.
Signal Activity Threshold
Gain Trim For Virtual Channels