A

David

Darling

gain

Gain is the amount of increase in the strength of an audio signal, usually expressed in decibels (db).

 

A gain control is a device used to adjust the level of an audio signal, a circuit, or an amplifier; it usually involves turning a volume control knob or moving a slider.

 

Gain before feedback is the maximum amount of gain that can be achieved in a sound system before feedback occurs.