"A noise gate controls the volume of an audio signal. Comparable to a compressor, which attenuates signals above a threshold, noise gates attenuate signals that register below the threshold. However, noise gates attenuate signals by a fixed amount, known as the range. In its most simple form, a noise gate allows a signal to pass through only when it is above a set threshold: the gate is 'open'. If the signal falls below the threshold no signal is allowed to pass (or the signal is substantially attenuated): the gate is 'closed'. A noise gate is used when the level of the 'signal' is above the level of the 'noise'. The threshold is set above the level of the 'noise' and so when there is no 'signal' the gate is closed. A noise gate does not remove noise from the signal. When the gate is open both the signal and the noise will pass through."
Wikipedia entry for Noise Gate
The Fender Mustang amp, Fender Fuse software, and the Remuda App, offer five pre-set Noise Gate settings and manual controls.
- Manual Controls:
- Threshold - sets the level at which the Noise Gate dis/engages
- Depth - controls the amount of attenuation