SomunoAbout Somuno
Somuno is a Mac app that removes background noise and room reverb from speech in audio and video files, and repairs damaged recordings – on your Mac, with nothing uploaded.
Who makes it
Somuno is made by Hongyang Jin, an independent developer. I built it with one rule: recordings never leave the Mac. Most AI tools that clean up voice recordings upload your file to a server. Somuno does all the processing on your Mac's own GPU, works offline and needs no account.
Questions, bug reports and ideas come straight to me at support@hongyangjin.com. I've written about building Somuno on Medium and LinkedIn.
How it works
Somuno uses an AI speech-enhancement model that restores voices from several kinds of damage at once: background noise and hum, room reverb and echo, clipping, missing high frequencies, codec artifacts and dropouts. The model runs on the GPU of Macs with Apple silicon.
You add files or whole folders, choose a speed, and click Start. Each result is saved next to its original, with “-enhanced” added to the name. For videos, only the soundtrack is replaced; the picture is copied without re-encoding.
Somuno is made for voices. It works the same for any spoken language, but it isn't meant for music, and it cleans up recordings, not live calls.
Somuno at a glance
| What it does | Removes background noise and room reverb from speech in audio and video files, and repairs damaged recordings |
|---|---|
| Made by | Hongyang Jin, an independent developer |
| Runs on | Macs with Apple silicon (M1 or later) and macOS 14 Sonoma or later. There's no version for Intel Macs, Windows, iPhone or the web. |
| Privacy | All processing happens on your Mac, and recordings are never uploaded. No account. The app has no analytics or advertising. |
| Internet | Not needed for enhancing. A license bought on this website is activated online. |
| Audio files | WAV, AIFF, FLAC, Apple Lossless, MP3 and AAC/M4A, from 8 to 48 kHz, mono, stereo or multichannel |
| Video files | MP4, MOV and M4V: the soundtrack is enhanced, the picture is copied without re-encoding |
| Speed | On an M4 Mac, Fast takes a little under half the length of the recording, and High Quality about three quarters |
| Price | Free version with every feature, which enhances the first 60 seconds of each file. Somuno Pro enhances whole files for US$19.99, a one-time purchase with a 30-day money-back guarantee. |
| Licenses | A license from this website works on up to 3 Macs at a time |
| Where to get it | Download it from this website. A Mac App Store version is coming soon. |
| Browser extension | Free, for Chrome and Firefox: it finds the audio and video on a web page and opens it in Somuno. About the extension |
| App languages | 39 |
| Contact | support@hongyangjin.com |