Noise Gate

Noise gate is a filter which controls the volume of an audio signal. Any part of your audio which is below the Threshold will be attenuated by the amount you specify.

Threshold
Audio falling below this threshold will be attenuated.
Hold
The period of time (in milliseconds) to wait before applying the attenuation.
Release
The period of time (in milliseconds) taken to fully apply the attenuation.
Attack
The period of time (in milliseconds) taken to fully remove the attenuation.
Atenuação
The amount to attenuate the audio signal when it falls below the threshold.