A technique used to control the passage of a signal, allowing it through only when certain amplitude or timing criteria are met. In audio and radio, a noise gate mutes the output when the signal falls below a set threshold, eliminating background hiss. In digital logic and networking, gating refers to using clock pulses or control signals to dictate exactly when data packets or electrical pulses are permitted to advance.
Apply some aggressive gating on that microphone channel so we don't pick up the server fans in the background.
Related terms
Spectral gating
A digital signal processing method that reduces background noise by muting specific frequency bands.
Squelch
A circuit function that mutes the audio output of a receiver when no strong signal is present.
Signal
An electrical or electromagnetic variation that transmits data or voice from one point to another.