Polycom SoundStructure C16 Design Manual page 607

Argument Argument value
Conferencing Mic/Line Input, Conferencing Line Output,
Sound Reinforcement Mic/Line Input, Sound Reinforcement
Phys Chans Line Output, Analog Telephony Input, Analog Telephony
Output, Submix, ConferenceLink Aux Input, ConferenceLink
Aux Output
Virt Chans Mono, Stereo
Default 0
Event Source No
Description
This parameter enables (1) or disables (0) the low shelving filter for the speci-
fied virtual channel.
low_shelf_frequency
Argument Argument value
Channel Type Virtual Channel
Value Type Floating-Point
Read/Write Mode Read/Write
Conferencing Mic/Line Input, Conferencing Line Output,
Sound Reinforcement Mic/Line Input, Sound Reinforcement
Phys Chans Line Output, Analog Telephony Input, Analog Telephony
Output, Submix, ConferenceLink Aux Input, ConferenceLink
Aux Output
Virt Chans Mono, Stereo
System Limits Minimum: 20.0, Maximum: 20000.0, Resolution: 0.1
Default 500.0
User Limits No
Supported
Event Source No
Description
This parameter sets the cutoff frequency (in Hz) of the low shelving filter. This
is the frequency at which the shelving filter's gain is half its maximum gain.
Command Protocol Reference Guide
Frequency Of Low Shelving Filter
A - 91