Polycom SoundStructure C16 Design Manual page 629

Order Of Low-Pass
Argument Argument value
Channel Type Virtual Channel
Value Type Integer
Read/Write Mode Read/Write
Phys Chans Conferencing Mic/Line Input, Conferencing Line Output, Sound Reinforcement Mic/Line
Input, Sound Reinforcement Line Output, Analog Telephony Input, Analog Telephony Output,
Submix, ConferenceLink Aux Input, ConferenceLink Aux Output
Virt Chans Mono, Stereo
System Limits Minimum: 1, Maximum: 8
Default 2
User Limits No
Supported
Event Source No
Description
This parameter sets the order of the low-pass filter. Linkwitz-Riley filters only support even orders. If an odd
order is specified for a Linkwitz-Riley filter, it will be internally rounded up to an even number.
Type Of Low-Pass
Argument Argument value
Channel Type Virtual Channel
Value Type List
Read/Write Mode Read/Write
Phys Chans Conferencing Mic/Line Input, Conferencing Line Output, Sound Reinforcement Mic/Line
Input, Sound Reinforcement Line Output, Analog Telephony Input, Analog Telephony Output,
Submix, ConferenceLink Aux Input, ConferenceLink Aux Output
Virt Chans Mono, Stereo
Values butterworth : Butterworth filter (default)
linkwitz_riley : Linkwitz-Riley filter
Event Source No
Description
This parameter sets the type of analog filter prototype used for the low-pass filter.
Polycom, Inc.
Filter—lpf_order
Filter—lpf_type
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