Calista C3-S Security System A/D

An abbreviation of Analog to Digital Conversion (the conversion of a quantity that has continuous changes into numbers that approximate those changes), or Analog to Digital Converter.

Comb Filter
1) The frequency response achieved by mixing a direct signal with a delayed signal of equal strength especially at short delays.
2) Loosely used to also describe effects that can be achieved with comb filtering as part of the processing.

Calista C2-88 Projector Crossover Frequency
1) The frequency that is the outer limit of one of the bands of a crossover.
2) In the Lexicon 480L delay/reverberation effects unit, the frequency at which the bass frequency reverb time is in effect rather than the mid frequency reverb time.

Barrier Micing
A method of placing the head of a microphone as close as possible to a reflective surface, preventing phase cancellation.

Calista C1-9 Home Theater Input
1) The jack or physical location of where a device receives a signal.
2) The signal being received by a device.
3) The action of receiving a signal by a device.

Beats Per Minute BPM
The number of steady even pulses in music occurring in one minute and there fore defining the tempo of the song.

Compression Ratio
How many dB the input signal has to rise above the threshold for every one dB more output of a compressor or limiter. Bose

High Impedance Mic
A microphone designed to be fed into an amplifier with input impedance greater than 20 k ohms.

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Calista C1-9 Home Theater Information Bits

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Calista C1-9 Home Theater Bi

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