HushMic is a microphone noise suppression application for Linux that removes unwanted background sounds from live audio. It uses the DPDFNet speech enhancement model to reduce keyboard noise, computer fans and surrounding conversations while preserving speech clarity.
The application integrates with PipeWire and creates a virtual microphone that other applications can use as an audio input. This makes it suitable for voice calls, online meetings, streaming and recording without requiring each application to provide its own noise reduction facilities.
Audio processing takes place locally on the computer, with no need to upload recordings or microphone input to an external service.
This is free and open source software.
Key Features
- Real-time noise suppression using the DPDFNet speech enhancement model.
- Creates a PipeWire virtual microphone that can be selected in Discord, OBS Studio, browsers and other applications.
- Offers three operating modes: noise suppression, bypass and mute, with instant switching.
- Adjustable suppression strength and a choice between quality and lightweight processing models.
- System tray controls for selecting microphones, configuring processing and managing application behaviour.
- Built-in microphone testing facility compares the original and processed audio, including short recordings for playback.
- Supports global keyboard shortcuts and command-line controls for automation.
- Optional automatic startup and headless operation without a graphical system tray.
- Provides a LADSPA plugin for integration with Easy Effects and other compatible audio processing applications.
- Automatically recreates its virtual microphone following PipeWire restarts or system suspension.
- Uses CPU-based inference, with a native processing engine on supported processors and an ONNX Runtime fallback.
Website: github.com/Fovty/HushMic
Support:
Developer: Fovty
License: MIT License or Apache License 2.0
HushMic is written in Rust. Learn Rust with our recommended free books and free tutorials.
Related Software
| Noise Suppression Tools | |
|---|---|
| NoiseTorch-ng | Creates a virtual microphone that suppresses noise |
| noise-suppression-for-voice | Noise suppression plugin based on RNNoise |
| Easy Effects | GTK4 audio manipulation which includes a range of tools |
| noise-repellent | Suite of lv2 plugins for noise reduction |
| DeepFilterNet | Low-complexity speech enhancement framework |
| BigLinux Microphone | Improve spoken audio captured from a microphone |
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