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A New Initialization Method for Frequency-Domain Blind Source Separation Algorithms

delete2011-06-01
delete8
PRE
AI
F
F S P Clark *
M
Mariane R. Petraglia
D
Diego B. Haddad
DOI:10.1109/LSP.2011.2135851delete
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Abstract

Abstract

En 中文
Frequency-domain blind source separation (BSS) techniques have been proposed with the objective of increasing the speed and/or reducing the computational complexity of conventional algorithms, mainly for applications that involve large convolutive mixture filters. In this letter, we present a new initialization method for frequency-domain BSS algorithms employing estimates of the directions of arrival and time-frequency masking, that outperforms the classical pre-whitening initialization technique. Performance and convergence time results of the proposed approach are presented using a frequency-domain BSS algorithm that exploits higher-order frequency dependencies, employing real conference room recordings and simulated data.
Keywords:
Blind source separation (BSS)
convolutive mixtures
clustering
direction of arrival

Journal

IEEE Signal Processing Magazine cover
IEEE Signal Processing Magazine
IF:
9.6
Papers:
1.1W
Citations:
1.7W

Organization

U
Universidade Federal do Rio de Janeiro
Scholars:
2.9W
Papers: 1.8W
Citations: 1.6W