Music Duck

Automatically lowers YouTube Music while other audio plays (videos, calls, other apps), then brings it back when they stop.

Your music gets out of the way when something else needs to be heard. Music Duck automatically lowers YouTube Music while any other sound plays: a video in another tab, a voice message, a call. When that sound stops, the music fades back in. No reaching for the volume slider, and YouTube Music's own volume setting stays exactly where you left it. HOW IT WORKS • Another tab starts playing → your music drops by 67% • It stops → the music fades back in over 0.75 seconds • Smooth fades, no sudden jumps, even when songs change GO FURTHER ON MAC (optional, free, open source) Install the small Music Duck helper and it also ducks for apps outside Chrome: Zoom, FaceTime, Spotify, games, anything. It measures how loud each app is (in LUFS, the loudness scale streaming services use) and sets your music 67% below it, so the quietest voice in the room still comes through. Setup: github.com/negentropi/music-duck PRIVATE BY DESIGN • Collects nothing, sends nothing, makes no network requests • Can't see your other tabs' addresses or titles. Chrome only tells it whether a tab is playing sound • Runs only on music.youtube.com • Open source: github.com/negentropi/music-duck Music Duck is an independent project, not affiliated with or endorsed by Google or YouTube.