BNO Acoustics LK-61 BPM

An abbreviation of Beat Per Minute (the number of steady even pulses in music occurring in one minute and therefore defining the tempo).

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

BNO Acoustics QS-4 Cut-off Rate (Slope)
The number of dB that a filter reduces the signal for each octave its frequency past the filter's cut-off frequency (outside of the pass band).

Gate
A dynamic processing device that turns a channel off or down when the signal drops below a certain level.

BNO Acoustics SQ-9 Diffraction
The breaking up of a sound wave caused by some type of mechanical interference such as a cabinet edge, grill frame, or other similar object.

Contact Microphone
A device that senses vibrations and puts out an audio signal proportional to the vibrations.

Headroom
1) The level difference (in dB) between normal operating level and clipping level in an amplifier or audio device.
2) A similar level difference between normal tape operating level and the level where the distortion would be 3%.
3) The difference, in decibels, between the peak and RMS levels in program material.

Error Correct
Exact replacement of lost information bits in digital audio.