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Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
5 - 22
input basis.
As described in Chapter 2, there are four different types of ungated signal pro-
cessing paths that may be selected for each input. The different signal
processing paths for the four ungated signal types are summarized in the fol-
lowing table.
The default ungated type depends on the type of input signal as shown in the
following table.
Most applications benefit from the Line Input ungated signal processing path
for program audio and other non-microphone audio that is not usually
automixed.
An example of using the line input processing is shown in the following figure
Ungated Type Summary
Bypass No signal processing on the audio
channel.
Line Input Equalization, dynamics processing, AGC
Conferencing Equalization, echo and noise cancellation,
non linear processing, dynamics
processing, AGC
Sound Reinforcement Equalization, echo and noise cancellation,
feedback elimination, dynamics
processing, AGC
Signal Type Default ungated type
Microphone channels Sound Reinforcement
Non microphone channels Line input