CONSOLE AI | Glossary | 310
Automatic Gain Control (AGC)
Automatically increases or decreases audio gain to maintain a consistent audio level.
Automatic Level Control (ALC)
ALC can be selected for Telco Receive and Mic/Line Input AEC channels. ALC keeps soft and loud
telephone participants at a consistent level. ALC can be turned on or off in the Telco Receive and Mic/Line
Input AEC Channel Properties. The default is on for both Telco Receive and Mic/Line Inputs.
Bandwidth
The difference between the lower and upper end points of an audio band. Also, the range or differences
between the limiting frequencies of a continuous frequency band.
Baud Rate
The number of signal transitions per second, or the clock rate of the serial bit stream in hertz. Given 7 or 8
bits for data plus start and stop, the approximate ASCII character transmission rate is one-tenth the baud
rate.
Beamforming Microphone Array 2
The Beamforming Microphone Array 2 uses multiple microphone elements to steer its pickup pattern
towards participants in the room and reject unwanted noise and reflections.
Chairman Override
Provides gating priority for chairman override enabled microphones within the same gating group. When
a mic with chairman override gates on, all mics that don’t have chairman override enabled and are in the
same gating group will gate off.
ClearEffect
®
To reduce bandwidth requirements, telephone lines limit audio bandwidth to a range of 300Hz-3.3kHz.
ClearEffect enhances the incoming signal from a telephone line to emulate wideband audio by adding 371
high and low frequencies to the audio signal, creating a richer, fuller sound. All output signals routed from
an input channel with ClearEffect enabled are routed as wideband audio.
Clipping
Clipping occurs when a signal level exceeds the maximum level a circuit can handle. This is usually
caused by improper gain settings. Clipping causes distortion, listener fatigue, and accelerated failure of
speakers.
Compression
An induced reduction in the dynamic range of all or part of an audio signal. Compression is usually used to
protect individual loudspeaker components from damage caused by transient peaks in audio signals.
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