Title
Post-Processing For Convolutive Blind Source Separation
Abstract
Convolutive blind source separation (BSS) aims at separating point sources from mixtures picked up by several sensors. In real-world environments moving speakers, background noise and long reverberation are encountered which often degrade the performance of BSS algorithms. In such cases, the application of a post-filter can improve the output signal quality by suppression of residual crosstalk and of background noise. In this paper we propose a novel technique to estimate the necessary power spectral densities of the cross-talk components and present a robust system which allows to further suppress both, the remaining interference from point sources and the background noise. Experimental results show the benefit of this post-processing method in realistic environments.
Year
DOI
Venue
2006
10.1109/ICASSP.2006.1661206
2006 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-13
Keywords
Field
DocType
background noise,power spectral density,reverberation,signal processing,degradation,convolution,point source,blind source separation,crosstalk
Residual,Signal processing,Background noise,Reverberation,Pattern recognition,Convolution,Computer science,Artificial intelligence,Interference (wave propagation),Blind signal separation,Source separation
Conference
ISSN
Citations 
PageRank 
1520-6149
8
0.72
References 
Authors
6
4
Name
Order
Citations
PageRank
R. Aichner1385.64
M. Zourub280.72
Herbert Buchner343540.57
W. Kellermann468671.03