Polycom SoundStructure C16 Design Manual page 642

Description
This parameter enables (1) or disables (0) the expander function of the dynamics processor. This parameter
and dp_en must be enabled for the expander to function.
Expander Ratio—dp_exp_ratio
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, Analog Telephony Input, Analog Telephony Output,
Submix, ConferenceLink Aux Input, ConferenceLink Aux Output
Virt Chans Mono, Stereo
System Limits Minimum: 1.0, Maximum: 100.0, Resolution: 0.1
Default 2.0
User Limits No
Supported
Event Source No
Description
This parameter sets the ratio of the target gain applied by the expander versus the difference between the
input signal level and the expander threshold. For example, if the expander ratio is 2 (i.e., 2:1) and the input
signal level is 3 dB below the expander threshold, the expander applies -6 dB of gain.
Polycom, Inc. 642