Draft: Noise suppression
Dump AEC audio (mic, ref and clean) in raw files to analyse the noise. Add tests for audio denoising with several background noises. Add noise suppression module from webRTC. Add RNNoise library.
https://linphone.atlassian.net/browse/SDK-593
https://linphone.atlassian.net/wiki/x/BAAWNw
cherry pick from initial branch feature/noise-suppression : !5126 (closed)
Edited by Flore Harlé