Polycom SoundStructure C16 Design Manual page 42

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
UNGATED - Line Input Processing
Mic or Line A/D Parametric
Analog
Input Gain Converter Equalization
Parametric
Equalization
UNGATED - Noise Cancellation Processing
Mic or Line A/D Parametric
Analog
Input Gain Converter Equalization
Parametric
Equalization
UNGATED - Sound Reinforcement Processing
Mic or Line Analog A/D Parametric
Converter
Input Gain Equalization
Parametric
Equalization
2 - 24
Recording/Ungated - Line Input
The recording - line input version includes equalization, automatic gain con-
trol, and the dynamics processing as well as fader gain control, input delay,
and input mute as shown in the next figure. This processing path is typically
used by line input signals such as program audio, and hence the name line
input path.
Noise
Cancellation
Feedback
Cancellation
Automatic
Gain Control
Recording/Ungated - Noise Cancelled
The noise cancelled recording input includes the noise cancellation as shown
in the next figure. This path is typically used for recording of microphone
audio as it includes all the noise cancellation but not the automatic micro-
phone mixer processing.
Noise
Cancellation
Feedback
Cancellation
Noise Automatic
Cancellation Gain Control
Recording/Ungated - Sound Reinforcement
Finally, the sound reinforcement recording input includes the noise cancella-
tion and optional feedback elimination processing as shown in the following
figure.
Noise
Cancellation
Feedback
Cancellation
Noise Feedback Automatic
Cancellation Cancellation Gain Control
AGC Dynamics Fader
Automatic Dynamics
Fader
Gain Control Processor
Automixer
Dynamics
Automatic
Automixer Fader
Gain Control Processor
Automatic Dynamics
Automixer Fader
Gain Control Processor
Dynamics
Processor
AGC Dynamics Fader
Automatic Dynamics
Fader
Gain Control Processor
Automixer
Automatic Dynamics
Automixer Fader
Gain Control Processor
Automatic Dynamics
Automixer Fader
Gain Control Processor
Dynamics
Processor
AGC Dynamics Fader
Automatic Dynamics
Fader
Gain Control Processor
Automixer
Automatic Dynamics
Automixer Fader
Processor
Gain Control
Automatic Dynamics
Automixer Fader
Gain Control Processor
Dynamics
Processor
Delay Mute
Input to
Delay
Matrix
Input to
Delay
Matrix
Input to
Delay
Matrix
Fader Delay
Mute
Delay Mute
Input to
Delay
Matrix
Input to
Delay
Matrix
Input to
Delay
Matrix
Fader Delay Mute
Delay Mute
Input to
Delay
Matrix
Input to
Delay
Matrix
Input to
Delay
Matrix
Fader Delay Mute
Recording/
Ungated
Noise Cancelled
Sound
Reinforcement
Recording/
Ungated
Noise Cancelled
Sound
Reinforcement
Recording/
Ungated
Noise Cancelled
Sound
Reinforcement