Specifications

TECHNICAL SUPPORT: 1.800.283.5936 (USA) OR 1.801.974.3760
G
lossary
Glossary
GLOSSARY
159
Adaptive Ambient This portion of the mixer monitors the varying ambient
noise level in the room and changes the threshold level at which a
microphone gates on.
Ambient Level The manually-set background noise level upon which the
PSR1212 bases gating protocols. Used only if the Adaptive Ambient feature
isn’t used.
Ambient Noise The existing room-level noise, such as that caused by
ventilation systems, paper shuffling, and background chatter.
Amplitude Plot A plot of amplitude (-18 to 18dB) vs frequency (20Hz to
20kHz) on a logarithmic scale.
Attack This signal parameter determines how quickly compression is
enabled. It is calibrated in milliseconds.
Attenuation A reduction of signal amplitude.
Audio Processor A device that modifies an audio signal in response to
certain requirements.
Automatic Gain Control (AGC) Automatically increases or decreases
audio gain to maintain a consistent audio level.
Automatic Gating Automatically gates microphones on or off based on
input levels and other parameters programmed into the PSR1212.