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NoNoise Mac
What it is
NoNoise Mac is a macOS menu-bar app for reducing microphone background noise and room echo as audio is captured. It uses DeepFilterNet3 compiled to CoreML, with processing on Apple Neural Engine and Metal. Meeting, Podcast, Tutorial, and Custom modes combine suppression with voice-polish controls. Optional Broadcast Voice adds presence and de-essing, while Mouth Noise offers de-plosive and de-click suppression. Clean Incoming / Guest can denoise system audio in real time, but requires macOS 14.4 or later. The app routes cleaned microphone audio through its NoNoise Mic virtual microphone for use in apps such as Zoom, Meet, Discord, OBS, Slack, and QuickTime. It supports built-in, USB, and XLR microphones via an interface, along with global hotkeys, a URL scheme, and a bundled CLI for local audio-file cleanup. The project says audio stays on the Mac, with no telemetry or account. NoNoise Mac is free and open source under the MIT license. It requires an Apple Silicon Mac such as M1 or newer; Intel Macs are not supported.
For and against
For
- Free plan; open source under the MIT license
- Offers four modes and voice-polish controls
- Routes cleaned audio through a virtual microphone
- CLI cleans audio files locally
- Project says audio stays on the Mac without telemetry or an account
Against
- Requires Apple Silicon; Intel Macs are unsupported
- Incoming-audio cleanup requires macOS 14.4 or later
- Installer is not notarized and may require Open Anyway
The verdict
NoNoise Mac combines real-time microphone cleanup with several modes and app integrations, plus local file cleanup through its CLI. Its Apple Silicon requirement and non-notarized installer are important to consider before installing.
Who it suits
It suits Apple Silicon Mac users who want to reduce noise and echo for calls, recordings, or streams. Users who need incoming-system-audio cleanup should note its macOS 14.4 requirement.
Plans and prices
Free
Free · open source · MIT licensed
Read 30 Sep 2026 · github.com
On the record
- Incoming audio
- Clean Incoming / Guest can denoise system audio in real time and requires macOS 14.4 or later.github.com · read 30 Sep 2026
- Input support
- The README says it works with built-in, USB, and XLR microphone inputs via an interface.github.com · read 30 Sep 2026
- Installation
- The project provides a downloadable installer package that installs the app and virtual microphone driver together.github.com · read 30 Sep 2026
- Integrations
- The app routes cleaned microphone audio through its NoNoise Mic virtual microphone for use in apps including Zoom, Meet, Discord, OBS, Slack, and QuickTime.github.com · read 30 Sep 2026
- Modes
- It offers Meeting, Podcast, Tutorial, and Custom modes, with suppression and voice-polish controls.github.com · read 30 Sep 2026
- Notarization
- The README says the installer is not notarized and may require the user to choose Open Anyway in macOS Privacy & Security settings.github.com · read 30 Sep 2026
- Offline file cleanup
- The CLI can clean audio files locally; the README says video-container support is planned separately.github.com · read 30 Sep 2026
- Platform requirement
- It requires an Apple Silicon Mac such as M1 or newer and does not support Intel Macs.github.com · read 30 Sep 2026
- Privacy
- The project says audio stays on the Mac, with no telemetry and no account.github.com · read 30 Sep 2026
- Processing
- It uses DeepFilterNet3 compiled to CoreML and processes audio on the Apple Neural Engine and Metal.github.com · read 30 Sep 2026
- Purpose
- NoNoise Mac is a menu-bar app that removes microphone background noise and room echo in real time.github.com · read 30 Sep 2026
- Stream Deck and CLI
- It supports configurable global hotkeys, a nonoisemac:// URL scheme for Stream Deck or shell actions, and a bundled CLI.github.com · read 30 Sep 2026
- Updates
- The app uses Sparkle to check for stable releases at launch and daily and can prompt users to update.github.com · read 30 Sep 2026
- Voice controls
- Optional Broadcast Voice adds presence and de-essing, while Mouth Noise offers de-plosive and de-click suppression.github.com · read 30 Sep 2026
