NoiseTorch is a real-time microphone noise suppression application for Gnu/Linux that can filter out unwanted background noise like the sound of your mechanical keyboard, computer fans, trains and so on. It currently only supports PulseAudio, but PipeWire support is planned for a future release.
The application user interface is built with simplicity in mind. If you only have 1 microphone, all you have to do is launch the application, then click on “Load NoiseTorch”. Once you do this, the application creates a virtual microphone called “NoiseTorch Microphone”. You can select this virtual microphone in any application in order to filter out background noises.
https://github.com/lawl/NoiseTorch
— source linuxuprising.com | Feb 24, 2021