The Gate Expander FX unit is a traditional Noise Gate type of effect. It also works well as a Dynamic Expander, which is the inverse of a compression effect.
Controls the audio level at which the Gate starts to open. Range: 0 to 35db
Adjusts the speed at which the gate opens. Range: 0.1 ms to 400ms
Adjusts how long the gate remains open. Range: 0 to 2000ms
Adjusts the speed at which the gate closes. 0.1 to 4000ms
Controls the dynamic range of the attenuation of the gate. Range: -90 to 0db