Brooks Cinema Projectors Feedback Control

The control on a delay line or delay effects device that controls the amount of feedback.

FOH (Front of House)
Refers to the speakers that face toward the audience. Also called the "main" speakers.

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

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

Brooks Cinema XS - 45 Keynote Number
A number assigned to each key of a synthesizer or controller keyboard that is transmitted in the MIDI signal.

Howlback
British term for the term Feedback (the pickup of the signal out of a channel by the input of the channel or the howling sound that this produces).

Charge
The electrical energy of electrons. The energy is in the form of a force that is considered negative and repels other like forces (other electrons) and attracts opposite (positive) forces.

Impedance
1) A term for the electrical resistance found in a/c circuits. Affects the ability of a cable to transmit low level (e.g. sound) signals over a long distance. Measured in Ohms. Speakers are rated according to power handling capabilities (Watts, W) and impedance (Ohms).
2) The total opposition offered by an electric circuit to the flow of an alternating current of a single frequency. It is a combination of resistance and reactance and is measured in ohms. Remember that a speaker's impedance changes with frequency, it is not a constant value.
3) The opposition to alternating current.