4 Best Free and Open Source Noise Suppression Tools
NoiseTorch-ng and noise-suppression-for-voice both use 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.
This article selects our pick of the available noise suppression tools. This type of software suppress a wide range of noise origins including computer fans, office, crowd, airplane, car, train, and construction. We only explore free and open source software here.