Polycom SoundStructure C8 User Manual

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
2 - 22
to paging zones that are not acoustically coupled to the microphone. This is the
default processing for microphone inputs when the automixed version of the
signal is selected.
Sound Reinforcement Version
The sound reinforcement version is processed with the parametric equaliza-
tion, noise cancellation, optional feedback elimination processing, automatic
gain control, dynamics processing, automixer, fader, delay, and input mute.
This is the path that is typically used for sending local audio to loudspeakers
in the room for sound reinforcement.
The automatic gain control on the sound reinforcement path is different from
the automatic gain control on the noise cancelled version of the signal in that
the sound reinforcement automatic gain control will not add gain to the signal.
In other words, the sound reinforcement AGC will only reduce the gain of the
signal and will not add gain to the signal. This restriction on the sound rein-
forcement AGC is to prevent the automatic gain control from reducing the
available potential acoustic gain before the onset of feedback.
Mic or Line
Input
Input to
Matrix
Input to
Matrix
Parametric
Equalization
A/D
Converter
Analog
Gain
Noise
Cancellation
Automatic
Gain Control
Automixer
AGC Dynamics Fader Delay
Fader
Automixer
Automixer
Delay
Automatic
Gain Control
Feedback
Cancellation
Dynamics
Processor
Dynamics
Processor
Fader
Input to
Matrix
Automatic
Gain Control
Fader Delay
Dynamics
Processor
Delay
Mute
Recording/
Ungated
Noise Cancelled
Sound
Reinforcement
SR-Series Noise Cancellation Input Processing
Parametric
Equalization
Noise
Cancellation
Automatic
Gain Control
Fader
Automixer
Delay
Dynamics
Processor
Mute
Mic or Line
Input
Input to
Matrix
Input to
Matrix
Parametric
Equalization
A/D
Converter
Analog
Gain
Noise
Cancellation
Automatic
Gain Control
Automixer
AGC Dynamics Fader Delay
Fader
Automixer
Automixer
Delay
Automatic
Gain Control
Feedback
Cancellation
Dynamics
Processor
Dynamics
Processor
Fader
Input to
Matrix
Automatic
Gain Control
Fader Delay
Dynamics
Processor
Delay
Mute
Recording/
Ungated
Noise Cancelled
Sound
Reinforcement
SR-Series Sound Reinforcement Input Processing
Parametric
Equalization
Noise
Cancellation
Automatic
Gain Control
Feedback
Cancellation
Fader
Automixer
Delay
Dynamics
Processor
Mute
The automatic gain control on the sound reinforcement processing path will not add
gain to the signal, it will only reduce the gain of the signal.

Polycom SoundStructure C8 Specifications

General

Brand	Polycom
Model	SoundStructure C8
Category	Conference System
Language	English