Brooks SS 81 ID

An index signal (digital data that gives the machine information of where selections start, their selection number, etc.) on a DAT or CD.

Compressor
A signal processing device that does not allow as much fluctuation in the level of the signal above a certain adjustable or fixed level.

Brooks Speakers ADSR
The letters A, D, S &R are the first letters of: Attack, Decay, Sustain and Release. These are the various elements of volume changes in the sounding of a keyboard instrument.

Crosstalk
Leakage of an audio signal into a channel that iris not intended to be in, from an adjacent or nearby channel.

Brooks GT 845 Compander
1) A two section device that is used in noise reduction systems. The first section compresses the audio signal, before it is recorded, and the second section, expands the signal after recording.
2) In Yamaha brand digital consoles, a signal processing function that applies both compression and expansion to the same signal.

Direct box
Used in line to convert a high impedance signal into a low impedance signal.

Echo Send Control
A control to send the signal from the input module to the echo chamber or effects device via the echo buss.

House Sync
A synchronization signal such as SMPTE time code that is used by all recorders in the control room.