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HushMic

HushMic is a free, open-source virtual microphone that applies real-time noise suppression across Linux.

Place
#19 of 24
Score
5.5
HushMic's website

What HushMic is

HushMic is a free, open-source virtual microphone that applies real-time noise suppression across Linux. It uses the DPDFNet model to reduce keyboard, fan, and background chatter noise from microphone audio. Processing runs on the CPU, and the maker says audio stays on the machine rather than being uploaded. The project reports 80 ms of processing latency, plus PipeWire buffering. You can switch among suppression, bypass, mute, and turning off the virtual microphone, including through command-line controls. A microphone test can display raw and cleaned audio side by side and record a 10-second sample for playback. Apps such as Discord, TeamSpeak, OBS, and browsers can select it as an input. Desktop shortcuts support mute, bypass, push to talk, and push to mute, subject to desktop and portal support. HushMic requires Linux on x86-64 with PipeWire and WirePlumber; PulseAudio apps also need pipewire-pulse. Installation options include Debian or Ubuntu, Arch, Fedora, NixOS, and AppImage. It is available under either the MIT or Apache-2.0 license.

Good

  • Reduces keyboard, fan, and background chatter noise.
  • Audio processing stays on the machine, according to the maker.
  • Offers suppression, bypass, and mute controls.
  • Mic test compares raw and cleaned audio.
  • Available under MIT or Apache-2.0 license.

Watch out

  • Requires Linux on x86-64 with PipeWire and WirePlumber.
  • Processing adds 80 ms of latency plus PipeWire buffering.
  • CPU use can be high on some slower systems.

Who it suits

HushMic suits Linux users who want system-wide microphone noise suppression and locally processed audio. It requires PipeWire and WirePlumber, with an additional component for PulseAudio apps.

Verdict

HushMic provides local, system-wide microphone noise suppression with several controls and a built-in audio comparison. Check its Linux audio requirements and reported latency before choosing it.

The facts

Each one read from HushMic's own pages, with the date it was checked.

What it does

Audio processing
The project states that processing adds 80 ms of latency and runs on the CPU.checked 7 Oct 2026
Controls
Users can switch among suppression, bypass, mute, and off modes, including through command-line controls.checked 7 Oct 2026
CPU limits
On CPUs without AVX2, the quality model can use about a third of a fast desktop core and more than a whole core on slow chips; on slow chips HushMic runs the light model on its own.checked 5 Oct 2026
Desktop shortcuts
Global shortcuts support mute, bypass, push to talk, and push to mute, subject to desktop and portal support.checked 7 Oct 2026
Distribution
The project lists installation options for Debian or Ubuntu, Arch Linux, Fedora, NixOS, and AppImage.checked 7 Oct 2026
Integrations
HushMic creates a PipeWire virtual microphone that can be selected as input in Discord, TeamSpeak, OBS, or a browser.checked 7 Oct 2026
Latency
The project reports 80 ms of processing latency, plus PipeWire's own buffering.checked 5 Oct 2026
License
HushMic is available under either the MIT or Apache-2.0 license.checked 7 Oct 2026
Licensing
The project is available under either the MIT or Apache-2.0 license, at the user's option.checked 5 Oct 2026
Local processing
Audio processing runs on the CPU, and the project says audio is not uploaded.checked 5 Oct 2026
Microphone test
The mic test can show raw and cleaned audio side by side and record a 10-second sample for playback.checked 5 Oct 2026
Mic testing
The mic test window can show raw and cleaned audio side by side and record a 10-second sample for playback.checked 7 Oct 2026
Noise removal
It uses DPDFNet to remove keyboard noise, fan noise, and background chatter from microphone audio.checked 7 Oct 2026
Noise suppression
It uses the DPDFNet model to reduce keyboard noise, fans, and background chatter from microphone audio.checked 5 Oct 2026
Notable limitation
A Flatpak build is documented, but the maker says there is no Flathub listing yet and the host needs PipeWire 0.3.65 or newer.checked 7 Oct 2026
Performance options
Users can choose a quality model or a lower-CPU light model, and HushMic can use a native engine or ONNX Runtime.checked 7 Oct 2026
Privacy
The maker states that audio stays on the machine and nothing is uploaded.checked 7 Oct 2026
Purpose
HushMic provides real-time microphone noise suppression for Linux as a system-wide virtual microphone.checked 7 Oct 2026
System requirements
The listed requirements are Linux on x86-64 with PipeWire and WirePlumber; PulseAudio apps need pipewire-pulse.checked 7 Oct 2026
Target users
The project describes its goal as bringing Linux users noise suppression comparable to Krisp in an app-like installation.checked 5 Oct 2026

The company

Maker
The GitHub profile identifies the maker as Fovty (Johannes).checked 7 Oct 2026

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