TY - GEN
T1 - Blind separation of convolutive mixtures of speech sources
T2 - 2013 38th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2013
AU - Fu, Xiao
AU - Ma, Wing Kin
PY - 2013/10/18
Y1 - 2013/10/18
N2 - This paper presents an efficient method for blind source separation of convolutively mixed speech signals. The method follows the popular frequency-domain approach, wherein researchers are faced with two main problems, namely, per-frequency mixing system estimation, and permutation alignment of source components at all frequencies. We adopt a novel concept, where we utilize local sparsity of speech sources in transformed domain, together with non-stationarity, to address the two problems. Such exploitation leads to a closed-form solution for per-frequency mixing system estimation and a numerically simple method for permutation alignment, both of which are efficient to implement. Simulations show that the proposed method yields comparable source recovery performance to that of a state-of-the-art method, while requires much less computation time.
AB - This paper presents an efficient method for blind source separation of convolutively mixed speech signals. The method follows the popular frequency-domain approach, wherein researchers are faced with two main problems, namely, per-frequency mixing system estimation, and permutation alignment of source components at all frequencies. We adopt a novel concept, where we utilize local sparsity of speech sources in transformed domain, together with non-stationarity, to address the two problems. Such exploitation leads to a closed-form solution for per-frequency mixing system estimation and a numerically simple method for permutation alignment, both of which are efficient to implement. Simulations show that the proposed method yields comparable source recovery performance to that of a state-of-the-art method, while requires much less computation time.
KW - Blind Source Separation
KW - Convolutive Mixture
KW - Permutation Ambiguity
KW - Speech Separation
UR - http://www.scopus.com/inward/record.url?scp=84890444439&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84890444439&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2013.6638474
DO - 10.1109/ICASSP.2013.6638474
M3 - Conference contribution
AN - SCOPUS:84890444439
SN - 9781479903566
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 4315
EP - 4319
BT - 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2013 - Proceedings
Y2 - 26 May 2013 through 31 May 2013
ER -