Brooks M 44 Leakage

Sounds from other instruments and sources that were not intended to be picked up by the microphone.

Expander
A device that causes expansion of the audio signal.

Brooks Cinema XR 607 Hypercardioid Pattern
A microphone pick up sensitivity pattern where the least sensitive pick up point is more than 90 degrees but less than 150 degrees off axis (usually 120 degrees).

Baffles
Sound absorbing panels used to prevent sound waves from entering or leaving a certain space

Brooks TM-22 Ground Lift
A switch that breaks the connection between the ground point in one circuit and the ground point in another circuit.

Flat
1) Lower in musical pitch.
2) A slang term used to describe the sensitivity to frequency of a microphone, amplifier, etc., as being even at all frequencies, usually within 2 dB.
3) Refers to the frequencies on the EQ when they are arranged in centred neutral positions.

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

Cut-Off Frequency (Turnover Frequency)
1) The highest or lowest frequency in the pass band of a filter.
2) The highest or lowest frequency passed by an audio device (the cut-off frequency is usually considered to be the first frequency to be 3 dB lower than a reference frequency in the middle of the bandwidth of the device)