Cochleagram and IS-NMF2D for Blind Source Separation

This is a demo code for single channel audio source separation

The code is about the blind audio separation which more details can be found in the paper of "Bin Gao, W.L. Woo and S.S. Dlay, “Unsupervised Single Channel Separation of Non-Stationary Signals using Gammatone Filterbank and Itakura-Saito Nonnegative Matrix Two-Dimensional Factorizations,” IEEE Transactions on Circuits and Systems I, vol. 60, no. 3, pp. 662-675, 2013."