REQ: Noir Labs Chain Shaper v3.1b for Ableton Max For Live

Chain Shaper is an audio triggered single and multiband sidechain utility that precisely ducks audio out with extreme accuracy.

Chain Shaper features the first of its kind automatic transient detection, so as soon as a trigger channel is set, ducking begins immediately. No more is it necessary to waste time with dummy clips and midi clips to trigger a sidechain. It's also quite musical in that it transparently "hugs" the input audio as if they're playing together. No more rhythmic grid restrictions. It also has a unique multi channel oscilloscope to view how the input signal interacts with the signal being ducked out. It works well with static elements and dynamic material alike.

It's by the far the cleanest and most intuitive sidechain utility on the market and I'm sure once you use it, you'll feel the same.