Polycom SoundStructure C16 Design Manual page 606

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
A - 90
Argument Argument value
Default 2
User Limits No
Supported
Event Source No
Description
This parameter sets the order of the high-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.
hpf_type
Argument Argument value
Channel Type Virtual Channel
Value Type List
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
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 high-pass
filter.
low_shelf_en
Argument Argument value
Channel Type Virtual Channel
Value Type Boolean
Read/Write Mode Read/Write
Type Of High-Pass Filter
Enable Low Shelving Filter