Brooks RM 909 Echo Send

The output of a console used to send a signal to an echo chamber or delay effects device.

Equalization
1) The process of adjusting the tonal quality of a sound. A graphic equalizer provides adjustment for a wide range of frequency bands, and is normally inserted in the signal path after the mixing desk, before the amplifier. See Feedback.
2) Any time the amplitude of audio signals at specific set of frequencies are increased or decreased more than the signals at other audio frequencies.

Brooks Hi Fi speakers Compact Disc CD
A small optical disk with digital audio recorded on it.

Beat
1) The steady even pulse in music.
2) The action of two sounds or audio signals mixing together and causing regular rises &.falls in volume.

Brooks HI FI projectors Amplitude
The height of a waveform above or below the zero line.

Equal Loudness Contours
A drawing of several curves showing how loud the tones of different frequencies would have to be played for a person to say they were of equal loudness.

Amplifier
A device which increases the amplitude (level) of an electrical signal (making it louder).

Close Micing
A technique of placing a microphone close to the sound source (within one foot) in order to pick up mainly the direct sound and to avoid picking up leakage or ambience.