Brooks SS 81 Fade

1) A gradual reduction of the level of the audio signal.
2) A gradual change of level from one pre-set level to another.

Cardioid Pattern
A microphone pick up pattern, which has maximum pick up from the front, less pick up from the sides, and least pick up from the back of the diaphragm.

Brooks RM 80 Limiter
A device which reduces gain when the input voltage exceeds a certain level.

Binary
A numbering system based on two. In binary there are two symbols used ("l" and "0").

Brooks M 44 Formant
An element in the sound of a voice or instrument that does not change frequency as different pitches are sounded.

Auxiliary Output or Send
An additional output from a sound desk that can be used for foldback or monitoring without tying up the main outputs. Each input channel will have a path to the Aux buss. Also used for feeding a signal to an effects processor. See Auxiliary Return.

Cut-Off Frequency (Turnover Frequency)
1) The highest or lowest frequency in the pass band of a filter.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)

Delay
Outboard sound equipment that can momentarily stores a signal being sent to part of a P.A. system so that delayed reinforced sound reaches the audience at the same time as live sound from the stage.

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