Specifications

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GLOSSARY
160
Bandwidth The difference between the lower and upper 3dB endpoints of
an audio band. Also, the range or differences between the limiting
frequencies of a continuous frequency band.
Baud Rate Data speed in bits per second.
Chairman Override Provides gating priority for all microphones selected
for the chairman override group. When a mic in this group gates on, all
microphones not included in this group gate off.
Clipping A condition in which a signal levels off at a predetermined level.
Clipping is usually caused by overdriving a signal, and can result in
distortion.
Compression An induced reduction in the dynamic range of part or all of
an audio signal. Compression is usually used to tailor the frequency
response of a signal and to protect individual loudspeaker components
from the damaging effects of transients.
Constant Directivity Horn Equalizer (CD Horn EQ) Horn drivers
commonly used in arrays in arenas and auditoriums have an inherent
6dB/octave high frequency rolloff. The PSR1212’s CD Horn EQ
compensates for this characteristic.
Crossover A device that passes designated frequency segments of an
audio signal to various loudspeaker elements in a sound system.
Crossover, Bessel A crossover using a low-pass filter design
characterized by a linear phase response. This results in a constant time
delay throughout the passband.
Crossover, Butterworth A crossover using a low-pass filter design
characterized by a maximally flat magnitude response. This results in no
amplitude ripple in the passband.
Crossover, Linkwitz-Riley A fourth-order crossover consisting of a
cascaded second-order Butterworth low-pass filter. Offers a vast
improvement over the Butterworth crossover and is the de facto standard
for professional audio active crossovers.
Decay Rate (slow, medium, fast) Programs how quickly the audio level is
attenuated once a channel has been gated off.
DSP Digital signal processor.