Brooks SS 81 Absorption

Short for the term Acoustical Absorption (quality of a surface or substance to take in, not reflect, a sound wave).

Foldback
A European term for the signal sent to the stage monitors in a live performance.

Brooks Cinema xm 808 Automatic Gain Control (Automatic Volume Control)
A compressor with a very long release time used to keep the volume of the audio very constant.

Field
1) In video, one half of a frame.
2) In computer-controlled devices a window display with functions and choices that the operator can make

Brooks TA 60 Byte
A grouping of eight information bits.

Chamber
1) An Echo Chamber (a room designed with very hard, non-parallel surfaces equipped with a speaker and microphone so that when dry signals from the console are fed to the speaker, the microphone will have a reverberation of these signals that can be mixed in with the dry signals at the console).
2) A program in a delay/reverb effects device that simulates the sound of an Echo Chamber.

Line
1) Short for line level.
2) A cable.

Distortion
Usually undesirable result of overloading sound equipment. Reducing the levels can remedy the situation.