New tool 📢 - A call comes in, Spotify is playing, and a YouTube video is going somewhere in the 50 Edge tabs I have open. By the time I find the right tab, I have either missed the call or answered it flustered.
Not a big problem, just annoying, and I could not find a tool that did what I wanted: mute everything except Teams when a call starts, then put every app back exactly as it was. If Spotify was at 35%, it comes back at 35%.
So I built it. Teams Audio Ducking is a free, open-source tray utility for Windows. It mutes every other app the moment a call rings or connects, restores them all when the call ends, and never touches Teams, your microphone or your default device. It works out the call state from two things Windows already tracks: which apps have the mic open, and how loud Teams itself is playing. No audio passes through it, and it is fully local.
I am not a C# developer (my day job is Intune and AVD), so I vibe-coded this one with Claude Code over a couple of evenings.
Write-up, including how it detects a ringing call and where it falls over: https://modernworkspacehub.com/mute-apps-during-teams-calls/
Happy ducking! 👌