Specifications

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GLOSSARY
163
loudspeaker audio from gating ON a microphone, while still allowing
people in the room to gate ON microphones as they speak.
PA Adaptive Reference This G-Ware setting determines which output
(typically for a loudspeaker) is used as a reference for an input.
Paging Zone A subset of a paging system. Intended to isolate paging
system outputs to specific geographical areas.
Parametric Equalizer (PEQ) A multi-band variable equalizer with control
of gain, center frequency, and bandwidth. A properly configured PEQ
enables the PSR1212 to offset speaker or room acoustic deficiencies.
Phantom Power Power supplied by the PSR1212 to power most
condenser microphones. The PSR1212 provides 24 volts of phantom
power. This feature can be switched off for devices not requiring phantom
power.
Phase Plot A plot of phase angle (-180 to 180 degrees) vs frequency
(20Hz to 20kHz) on a logarithmic scale.
Pink Noise An audio test signal containing all the frequencies in a given
audio spectrum, with equal energy in each octave.
Preset One of 32 configurable memories in the PSR1212. A preset can be
programmed with a variety of routing, level, gating, delay, filter, and
equalizer settings to meet specific application requirements.
Q Quality factor. It is the ratio of the center frequency divided by the
bandwidth. Q reflects an inverse relationship to the bandwidth, and adjusts
from .02:1 to 40:1 on the PSR1212.
Ratio The amount of compression applied to the output signal compared
with the input signal as the signal exceeds the threshold level.
Release Release is a parameter which determines how quickly
compression is released after the input signal drops below the threshold.
Reverberation Reflections of sound waves in a room or other acoustical
venue.
Serial Command A bit description designed to execute an instruction or
command.
Signal Delay Used for acoustically aligning speakers in an audio system to
provide balanced sound throughout the room.