Param
Threshold
determines the dB level at which the gate will close and open
Pre-open
allows the plugin to look ahead and anticipate dB changes that will cause the audio signal volume to surpass the threshold.
Attack
determines how quickly the gate opens when the signal volume rises above the threshold
Release
determines how quickly the gate closes when the signal volume again falls below the threshold
Hold
determines how long to wait after the signal volume falls below the threshold before it begins to close the gate.