This walkthrough shows Roar's Delay Routing mode in Ableton Live 12.2, applied to a track to build a synced, feedback-heavy delay that reacts to the drums instead of sitting static in the mix. The delay is set to eighth notes with feedback pushed up, and distortion is added only to the delayed signal, keeping the dry path clean while the repeats get grittier.
External sidechaining pulls in the drum track as an input, and the modulation envelope is filtered down to just the low end so the kick is what triggers the response. That envelope gets mapped in the Matrix to the delay's filter cutoff, so every kick hit ducks the delayed signal out of the way.
Blending between the delayed and direct signal makes the effect audible: the direct sound stays untouched while the delay pumps and opens back up between hits. It's a compact example of using sidechain-driven modulation to carve rhythmic space for a delay without manually automating anything.
Catch this in Ableton Live 12.2's feature overview, which shows updates across the browser and other devices.