Brooks RM 80 Electromagnetic Theory

A statement of the principles behind electromagnetic induction: When a conductor cuts magnetic lines of force, current is induced in that conductor.

Keying Input (Key Input)
An input on a dynamics processing device to control the device by an external audio signal.

Brooks Cinema TX 509 Input Monitor
A switch position and operational mode of the electronics of a tape machine where the signal at output of the electronics will be the same as the signal coming into the electronics. In this mode, the tape machine's meter will read the input signal.

Feed
To send an audio or control signal to.

Brooks TA 60 Keynote Number
A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal.

Amplifier (Power amp, Head)
It's the part of the sound system that actually magnifies or "amplifies" the sound. In other words, it makes stuff louder.

Dolby
Trade name for a series of noise reduction systems that have become standard on many tape playback machines. Many film soundtracks are produced using this process. Different varieties are found from Dolby B on most personal cassette players, to Dolby SR and Digital, the current state of the art for cinema.

Attack
The rate the sound begins and increases in volume.