NMFIG

MATLAB code for the Variational EM algorithm for Source Separation via non-factorised full-rank PSD (NMF applies in the Bayesian prior) via Inverse-Gamma priors from the paper:

D. Kounades-Bastian, L. Girin, X. Alameda-Pineda, S. Gannot and R. Horaud, 
"An inverse-gamma source variance prior with factorized parameterization for audio source separation,"
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Shanghai, China, pp. 136-140, doi: 10.1109/ICASSP.2016.7471652.

DEMO

# In Matlab command line
>> example

example.m generates a stereo mix of 3 sources (by loading trueSrc1.wav, ..). Then calls initNMF() to provide initialisation for the Variational EM params (via binary masking). Then applies nmfig() to separate the sources.

Separated sources will be saved as .wav files (estimatedSrc1.wav, etc.) in the directory ./results/. File nmfig.m implements the NMFIG algorithm.

PAPER

• Pdf: HAL
• Slides: perception - inria.fr