Sotto removes background noise from your microphone in any macOS call app — Zoom, Google Meet, Teams, Discord, OBS. It runs DeepFilterNet3 entirely on your device, ships its own audio driver (no virtual cables), and needs no account or cloud. Free and open source (MIT). A no-subscription alternative to Krisp's core feature.

Hey Product Hunt 👋 I'm the maker. I built Sotto after my Krisp trial ended and noise cancellation shut off mid-call — and I realized there was no good open-source option on macOS (NoiseTorch is Linux-only). Sotto adds a "Sotto Microphone" you select in any call app. It cleans your mic with DeepFilterNet3 on-device, ships its own Core Audio driver so there are no BlackHole cables to wire up, and sends nothing to the cloud. MIT-licensed. It's an early preview — mic noise removal works end-to-end and runs at ~4% CPU. Next up: a signed installer, an Intel build, and closing the last bit of the real-time quality gap. Would love your feedback — AMA about the audio driver or the on-device model!

A few weeks ago my Krisp trial ended and noise cancellation switched off in the middle of a call. I went looking for an open-source alternative on macOS and there really isn't one. The good open tools (NoiseTorch, EasyEffects) are all Linux-only.

So I built Sotto. It adds a "Sotto Microphone" that you pick in any call app (Zoom, Meet, Teams, Discord, OBS). It cleans your mic with DeepFilterNet3 running entirely on your device, ships its own audio driver so there's no BlackHole/virtual-cable setup, and sends nothing to the cloud no account, no subscription. It's MIT-licensed. It's an early developer preview, but it works end-to-end and runs at ~4% CPU. I'm launching it here on Product Hunt soon and would genuinely love feedback before and during.

- Repo: https://github.com/naga-pavan12/...

- Site: https://sotto-website-teal.verce...

- Repo: https://github.com/naga-pavan12/...

- Site: https://sotto-website-teal.verce...

Sotto

Free, Open Source Noise Cancellation For Your Mac

Free, Open Source Noise Cancellation For Your Mac

Forum Threads

I built a free, on-device noise-cancelling mic for macOS, would love your feedback

Forum Threads

I built a free, on-device noise-cancelling mic for macOS, would love your feedback