Non-negative Matrix Factorization with cepstral distance regularization


Contributors: Takuya Higuchi, Norihiro Takamune (The University of Tokyo) and Hirokazu Kameoka (The University of Tokyo, NTT Corporation).


Examples of experimental results

Here we demonstrate two examples of unsupervised instrument-wise source separation obtained with the proposed and reference methods using two pieces of music. The audio files are excerpted from the RWC Jazz music database.
Proposed: Joint optimization approach to spectrogram factorization and basis clustering Reference: Spectrogram factorization followed by basis clustering

mixture signal separated signals (proposed) separated signals (reference)
Crescent Serenade (RWC-MDB-J-2001 No. 14)
piano

bass

piano

bass

 


mixtrure signal separated signals (proposed) separated signals (reference)
Abyss (RWC-MDB-J-2001 No. 15)
piano

bass

piano

bass