TY - GEN
T1 - Time-dependent recursive regularization for sound source separation
AU - Wang, Tien Ming
AU - Chen, Ta Chun
AU - Chen, Yin Lin
AU - Su, Alvin W.Y.
PY - 2012
Y1 - 2012
N2 - Real world music pieces often present time-varying spectral shapes that normally lead to time, amplitude or frequency modulations in a phrase. Whereasthe standard Non-negative Matrix Factorization (NMF) assumes fixed spectral bases, an extension is proposed where the temporalactivations, the coefficients of the decomposition on the spectralatom basis, become frequency dependent In this paper, a frame-based recursive regularization method is proposed for sound source separation applications. System of equations evolves when a new frame is added and an old frame is dropped in order to track varying characteristics of some instruments. The amount of required matrix inversions is greatly reduced with the proposed work. This work is also compared with a time-dependent NMF method to show the superior performance on the signals with glissando and vibrato effects. Objective measure is applied as well.
AB - Real world music pieces often present time-varying spectral shapes that normally lead to time, amplitude or frequency modulations in a phrase. Whereasthe standard Non-negative Matrix Factorization (NMF) assumes fixed spectral bases, an extension is proposed where the temporalactivations, the coefficients of the decomposition on the spectralatom basis, become frequency dependent In this paper, a frame-based recursive regularization method is proposed for sound source separation applications. System of equations evolves when a new frame is added and an old frame is dropped in order to track varying characteristics of some instruments. The amount of required matrix inversions is greatly reduced with the proposed work. This work is also compared with a time-dependent NMF method to show the superior performance on the signals with glissando and vibrato effects. Objective measure is applied as well.
UR - http://www.scopus.com/inward/record.url?scp=84872137157&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872137157&partnerID=8YFLogxK
U2 - 10.1109/ICALIP.2012.6376618
DO - 10.1109/ICALIP.2012.6376618
M3 - Conference contribution
AN - SCOPUS:84872137157
SN - 9781467301718
T3 - ICALIP 2012 - 2012 International Conference on Audio, Language and Image Processing, Proceedings
SP - 235
EP - 240
BT - ICALIP 2012 - 2012 International Conference on Audio, Language and Image Processing, Proceedings
T2 - 2012 3rd IEEE/IET International Conference on Audio, Language and Image Processing, ICALIP 2012
Y2 - 16 July 2012 through 18 July 2012
ER -