Triggering a Delay Effect with Side-Chain Signals
You can use side-chain signals to create a ducking delay effect. This is useful if you want to apply a delay effect that is audible only when no signal is present on a track.
Procedure
Result
The signals from the duplicated track are routed to the effect. Every time the audio signals on the track set in, the delay effect is deactivated.
Note
To ensure that audio signals of low or middle volume also silence the delay effect, you can adjust the volume of the duplicated track.