NoiseTorch uses RNNoise, a noise suppression library based on a recurrent neural network (RNN). A RNN is a class of artificial neural networks where connections between nodes can create a cycle, allowing output from some nodes to affect subsequent input to the same nodes. RNNs are particularly effective for background noise removal because they can learn patterns across time, which is essential for understanding audio.
NoiseTorch isn’t only useful for gamers who are live-streaming and recording. It can be used to suppress noise in a wide range of applications.
Be sure not to miss page two of the linked article, which explains how to use it. I've set "proper" noise-cancelling and enhancement on OBS Studio, and it can take quite a while, and still not be perfect. NoiseTorch is a great option for those who don't want to fuss with all that. Some apps do have noise-cancelling built in, and in those cases continue to connect to your existing physical microphone.
See
Awesome Linux Game Tools: NoiseTorch-ng - LinuxLinks
NoiseTorch-ng is billed as an "easy to use open source application for Linux with PulseAudio or PipeWire".
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