unofficial implementation of convolutive transfer function multichannel non-negative matrix factorization the dataset used in the original paper can be found at the author's repo: https://github.com/TaihuiWang/CTF-MNMF Reference paper: T. Wang, F. Yang, J. Yang, "Convolutive Transfer Function-Based Multichannel Nonnegative Matrix Factorization for Overdetermined Blind Source Separation", IEEE TASLP, 2022.