Noise Suppression for Voice

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Ranked in AI Noise Cancellation Software ·No free plan on record

About

Noise Suppression for Voice is a free, real-time microphone noise suppression plugin built on Xiph's RNNoise. It targets sounds including computer fans, offices, crowds, aircraft, cars, trains, and construction. It is available for Linux, macOS, and Windows, with VST2, VST3, LV2, LADSPA, AU, and AUv3 formats. Its minimal interface provides parameters and diagnostic statistics, including voice-activity threshold and grace-period controls. Those settings can silence audio below a chosen voice probability while allowing a grace period around speech. The plugin requires 16-bit audio at 48000 Hz and supports one or more channels. Setup instructions cover PipeWire and PulseAudio on Linux and enabling VST2 in Equalizer APO on Windows; the project also reports compatibility testing with Equalizer APO, PipeWire, Carla, and Audacity. The macOS setup section is still marked TODO. Licensed under GPL-3.0, the project welcomes improvements. Its maker cautions that poor microphone quality may not improve and that the plugin can mistake voice for noise.

Who it is for

It suits people seeking real-time microphone noise suppression across Linux, Windows, or macOS, particularly where its supported plugin formats fit the audio setup. macOS users should note that setup instructions are not yet provided.

What is good

  • Free under GPL-3.0.
  • Supports six plugin formats.
  • Targets several common environmental noise types.
  • Includes configurable voice activity and grace-period settings.
  • Linux setup documentation covers PipeWire and PulseAudio.

What to know first

  • Requires 16-bit audio at 48000 Hz.
  • Poor microphone quality may not improve.
  • Voice can be misclassified as noise.
  • macOS setup instructions are TODO.

Verdict

Noise Suppression for Voice offers broad plugin-format support and documented Linux and Windows setup at no cost. Check the audio requirements and voice-detection limitations, and note that macOS setup guidance is unfinished.

Compared on AI noise cancellation software

Free plan
Yesgithub.com
Real-time cancellation
Yesgithub.com
Recording support
Yesgithub.com
Voice isolation
Yesgithub.com
Echo cancellation
Nogithub.com
Audio source support
microphonegithub.com

Facts

Purpose
A real-time voice noise suppression plugin based on Xiph's RNNoise.github.com · 2 Oct 2026
Noise types
It targets noise such as computer fans, office, crowd, airplane, car, train, and construction sounds.github.com · 2 Oct 2026
Plugin formats
It supports VST2, VST3, LV2, LADSPA, AU, and AUv3 formats.github.com · 2 Oct 2026
Controls
The plugin has a minimalistic GUI with parameters and diagnostic stats, including voice activity detection threshold and grace period controls.github.com · 2 Oct 2026
Audio requirements
It requires 16-bit audio at 48000 Hz and supports one or more channels.github.com · 2 Oct 2026
Compatibility
The maker reports testing with Equalizer APO v1.2 x64, PipeWire on Arch Linux, Carla on Linux, and Audacity on Linux.github.com · 2 Oct 2026
Windows integration
On Windows, the README describes enabling the VST2 plugin in Equalizer APO.github.com · 2 Oct 2026
Linux integration
The README documents setup with PipeWire and PulseAudio.github.com · 2 Oct 2026
Limit
The maker cautions that poor microphone quality may not improve and that the plugin can misclassify voice as noise.github.com · 2 Oct 2026
License
The project is licensed under GNU General Public License v3.0.github.com · 2 Oct 2026
Security
The repository's Security and quality tab shows 0 security items.github.com · 2 Oct 2026
Support
The maker welcomes improvements and asks contributors planning sizeable changes to open an issue first.github.com · 2 Oct 2026
Latest release note
Version 1.21 lists an updated RNNoise model, wet/dry controls, and runtime CPU detection for AVX2, SSE, and default paths.github.com · 2 Oct 2026
Voice detection
Voice Activity Detection settings can silence audio below a configurable voice probability threshold, with grace periods to help avoid cutting off word endings or beginnings.github.com · 3 Oct 2026
Integrations
The README says the plugin was tested with Equalizer APO on Windows and PipeWire, Carla, and Audacity on Linux.github.com · 3 Oct 2026
Linux setup
The README provides setup instructions for PipeWire and PulseAudio, including creating a noise-reduced microphone source.github.com · 3 Oct 2026
macOS status
The README’s macOS section says contributions are welcome and setup instructions are TODO.github.com · 3 Oct 2026
License and contributions
The project is licensed under GPL-3.0, and the README welcomes improvements and asks contributors to open an issue before sizeable contributions.github.com · 3 Oct 2026

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