BNO Acoustics QS-4 Boundary Mic

A microphone mounted on a flat plate that acts as a reflective surface directing sound into the mic capsule. Used for general pick-up over a large area. See PCC, PZM.

Attack
The rate the sound begins and increases in volume.

BNO Acoustics R-10 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.

Gain
1) Knob usually found at the top of each input channel on the soundboard. Used to set input levels of the separate channels to relatively equal positions.
2) The amount of increase in audio signal strength, often expressed in dB.

BNO Acoustics R-10 Speakers Hard Disk Recording
The recording of digital audio onto a hard disc.

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

Kilo
A prefix meaning 1000.

Hall
A large building designed for concerts; also called a concert hall.