Understanding C-Series Acoustic Echo Canceller References - Polycom SoundStructure C16 Design Manual

SoundStructure C-Series Submix Processing
1st or 2nd order high shelf and low shelf filters
10-bands of parametric equalization
Dynamics processing: gate, expander, compressor, limiter, peak limiter
Signal fader gain: +20 to -100 dB
Signal delay: up to 1000 msec
As shown in the following figure, each submix signal from the matrix is processed with dynamics processing,
parametric equalization, a fader, and up to 1000 milliseconds of delay. Each SoundStructure device has as
many submixes as there are inputs.
SoundStructure C-Series Submix Processing
Input
1
Processing
Input
2
Processing
Input
N
Processing
Submix Processing
Submix Input
Dynamics
from Matrix
Processing

Understanding C-Series Acoustic Echo Canceller References

In conferencing applications, an acoustic echo canceller (AEC) removes the remote site's audio that is
played in the local room and prevents the audio from being picked up by the local microphones and sent
Polycom, Inc.
Telco
Telco
Telco
Processing
Telco
Processing
Processing
Processing
Processing
Processing
Matrix
Processing
SubMix
Submix
Processing
Processsing
Parametric
Fader Delay
Equalization
Output
1
Output
2
Output
N
Mute
Submix output
to Matrix
31