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FlipTop Computer Center Crestron QM-FTCC
Gain
An adjustable amplification to accommodate varying input signal levels.
Gating
Gating is a function that mutes a microphone signal when the input sound level
is below a user-set threshold (gating level).
The following diagram demonstrates clipping, attack time, decay time, and
gating level.
Visual Representation of Gating Level, Clipping Level, Attack Time, and Decay Time
Clipping Level
Gating Level
Attack Time
Mic Off
TIME
SIGNAL LEVEL
Decay Time
Mic On
SIGNAL LEVEL
TIME
MICROPHONE
INPUT
SIGNAL
QM
OUTPUT
SIGNAL
Mic On
Attack Time Decay Time
Mic Off
Gating Level Reached
Gating Level
Reached
Setting Microphone Gain
The QM-FTCC provides variable gain on the microphone inputs. The following
procedure is used to set the optimal gain for a microphone input.
42 • FlipTop Computer Center: QM-FTCC Operations & Installation Guide - DOC. 6313A