TY - GEN
T1 - A two-step NMF based algorithm for single channel speech separation
AU - Wang, Shuo
AU - Wu, Wenjun
PY - 2012
Y1 - 2012
N2 - Nonnegative Matrix Factorization (NMF) has become an increasingly popular method in the field of non-stationary speech denoising. However most NMF-based algorithms assume prior knowledge about the background noise, which is often not available in time-varying and mobile environments. In this paper, we propose a two-step NMF based speech-noise separation algorithm to address this issue. This algorithm takes the outcome of the first NMF separation as the dataset to train the basis vectors for the background noise, which will be used for the second-step NMF separation with fixed speech and noise basis vectors. Experimental results show that the proposed algorithm could achieve better results than other NMF algorithms for speech-noise separation.
AB - Nonnegative Matrix Factorization (NMF) has become an increasingly popular method in the field of non-stationary speech denoising. However most NMF-based algorithms assume prior knowledge about the background noise, which is often not available in time-varying and mobile environments. In this paper, we propose a two-step NMF based speech-noise separation algorithm to address this issue. This algorithm takes the outcome of the first NMF separation as the dataset to train the basis vectors for the background noise, which will be used for the second-step NMF separation with fixed speech and noise basis vectors. Experimental results show that the proposed algorithm could achieve better results than other NMF algorithms for speech-noise separation.
KW - Nonnegative matrix factorization
KW - Single channel speech separation
KW - Voiced/unvoiced sound classification
KW - Wiener filter
UR - https://www.scopus.com/pages/publications/84878592865
M3 - 会议稿件
AN - SCOPUS:84878592865
SN - 9781622767595
T3 - 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
SP - 1987
EP - 1990
BT - 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
T2 - 13th Annual Conference of the International Speech Communication Association 2012, INTERSPEECH 2012
Y2 - 9 September 2012 through 13 September 2012
ER -