Noise Gate is a processor which cuts signal that doesn’t exceed specific threshold. When applied to input signal you can attenuate or eliminate background noise captured by microphone, separating background noise from the valid audio signal:
- When input signal is below the threshold, noise port will stay closed, or specific attenuation will be applied to the signal (using the DEPTH setting, in dB).
- When input signal is above the threshold, it’s possible to attenuate it, leaving the Noise Port open. Transition to this state is determined by set time using the ATTACK parameter.
- When input signal returns to below the threshold level, Noise Port will temporarily stay open, without attenuation (time set using the HOLD parameter), to finally close, returning to the attenuation level set (using the RELEASE parameter).
Available settings in MIMO:
- ENABLE/DISABLE: activates/deactivates Noise port (green button / grey button). When set to DISABLE, all other options won’t be available.
- THRESHOLD: defines signal input level, below which signal will be affected by the set attenuation DEPTH (port closed). Range for this parameter is between +18dB and -80dB.
- DEPTH: attenuation applied to signal when it’s below the detection threshold (Port closed). Range for this parameter is between 0dB and +80dB.
- ATTACK: attack time determines time between exceeding set threshold and cancelled attenuation applied to input signal (Port open). Range for this setting is between 0.1ms and 500ms.
- HOLD: determines time when port is still open (no attenuation) when signal drops again below the detection threshold. Range for this setting is between 10ms and 3 seconds.
- RELEASE: determines time it takes for port to close again after HOLD. Range for this setting is between 1ms and 1 second.
It’s fundamental to correctly ser parameters: ATTACK, RELEASE, and HOLD for the Noise Gate, eg. to receive clear and intelligible audio from noisy spaces. Check the image by clicking here.
