Brooks QS 70 Figure Eight Pattern

Another name for Bi-directional Pattern (microphone pickup pattern picking up best from the front and back of the diaphragm and not picking up from the side of the diaphragm).

Audio
Most often referring to electrical signals resulting from the sound pressure wave being converted into electrical energy.

Brooks Speakers 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.

Face
The front or body of the guitar.

Brooks Cinema KP 30 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.

Frequency Shift Key / FSK
The full name for FSK (A simple clock signal that can be used to run a sequencer in time with an audio tape).

DC
Abbreviation for direct current.

Flamenco
A style of music with roots in Spanish and Arabic culture.