Brooks XT 20 Bass Roll Off

An electrical network built into some microphones to reduce the amount of output at bass frequencies when close-micing.

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.

Brooks Cinema KP 30 Hz (Hertz)
1) An abbreviation for the term Hertz (the unit of frequency).
2) Unit of frequency equivalent to the number of cycles per second.

Consumer Format (Consumer DIF)
A standard adopted by IEC for sending and receiving digital audio based on The AES Professional Interface.

Brooks SS 81 Attenuation
A making smaller: reduction of electrical or acoustic signal strength.

Far Field
The area from 3 feet away from the sound source up to the critical distance.

Ground
In electronics, a place (terminal) that has zero volts.

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.