TY - GEN
T1 - Toward overcoming fundamental limitation in frequency-domain blind source separation for reverberant speech mixtures
AU - Kim, Lae Hoon
AU - Hasegawa-Johnson, Mark Allan
PY - 2010
Y1 - 2010
N2 - Blind source separation can be implemented in the frequency domain using one-tap multiplication operation in each frequency bin, but only when the frame length is long enough to disregard temporal aliasing effects. If we take a short-time frequency transformation with a window shorter than a room reverberation time, the justification above does not hold anymore. In this paper, we present an appropriate representation in the short-time frequency domain. The suitability is justified by showing the equivalence with the original time domain approach under the overlap-add context. Experimental validation using a corpus synthesized by convolution with measured sets of room impulse responses is also provided.
AB - Blind source separation can be implemented in the frequency domain using one-tap multiplication operation in each frequency bin, but only when the frame length is long enough to disregard temporal aliasing effects. If we take a short-time frequency transformation with a window shorter than a room reverberation time, the justification above does not hold anymore. In this paper, we present an appropriate representation in the short-time frequency domain. The suitability is justified by showing the equivalence with the original time domain approach under the overlap-add context. Experimental validation using a corpus synthesized by convolution with measured sets of room impulse responses is also provided.
UR - http://www.scopus.com/inward/record.url?scp=79958005036&partnerID=8YFLogxK
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U2 - 10.1109/ACSSC.2010.5757618
DO - 10.1109/ACSSC.2010.5757618
M3 - Conference contribution
AN - SCOPUS:79958005036
SN - 9781424497218
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 542
EP - 545
BT - Conference Record of the 44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010
T2 - 44th Asilomar Conference on Signals, Systems and Computers, Asilomar 2010
Y2 - 7 November 2010 through 10 November 2010
ER -