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Paper Abstract and Keywords
Presentation 2006-05-25 15:00
A Distortion Free Learning Algorithm for Feed-Forward BSS with Convolutive Mixture and Multi-Channel Signal Sources
Akihide Horita, Kenji Nakayama, Akihiro Hirano, Yasuhiro Dejima (Kanazawa Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Feed-forward Blind Source Separation (FF-BSS) systems have some degree of freedom in the solution space, and signal distortion is likely to occur in convolutive mixtures. Previously, a condition for complete separation and distortion free has been derived for 2-channel FF-BSS. This condition has been applied to the learning algorithms as a distortion free constraint in both the time and frequency domains. In this paper, the condition is further extended to multiple channel FF-BSSs. This condition requires the a high computational complexity to be applied to the learning process as a constraint. An approximate constraint is proposed in order to relax the high computational load. In comparison with the original constraint, computer simulations have demonstrated that the approximation can obtain similar performances with respect to source separation as well as signal distortion using speech signals. Furthermore, the performances can be improved compared to the conventionals for three channels.
Keyword (in Japanese) (See Japanese page) 
(in English) Blind source separation / Signal distortion / Convergence / Learning algorithm / Convolutive / / /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 66, SIP2006-15, pp. 17-22, May 2006.
Paper # SIP2006-15 
Date of Issue 2006-05-18 (EA, SIP) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee EA SIP  
Conference Date 2006-05-25 - 2006-05-26 
Place (in Japanese) (See Japanese page) 
Place (in English) EGRET Himeji 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic Signal Processing, etc. 
Paper Information
Registration To SIP 
Conference Code 2006-05-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Distortion Free Learning Algorithm for Feed-Forward BSS with Convolutive Mixture and Multi-Channel Signal Sources 
Sub Title (in English)  
Keyword(1) Blind source separation  
Keyword(2) Signal distortion  
Keyword(3) Convergence  
Keyword(4) Learning algorithm  
Keyword(5) Convolutive  
1st Author's Name Akihide Horita  
1st Author's Affiliation Kanazawa University (Kanazawa Univ.)
2nd Author's Name Kenji Nakayama  
2nd Author's Affiliation Kanazawa University (Kanazawa Univ.)
3rd Author's Name Akihiro Hirano  
3rd Author's Affiliation Kanazawa University (Kanazawa Univ.)
4th Author's Name Yasuhiro Dejima  
4th Author's Affiliation Kanazawa University (Kanazawa Univ.)
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Speaker Author-1 
Date Time 2006-05-25 15:00:00 
Presentation Time 30 minutes 
Registration for SIP 
Paper # EA2006-11, SIP2006-15 
Volume (vol) vol.106 
Number (no) no.64(EA), no.66(SIP) 
Page pp.17-22 
Date of Issue 2006-05-18 (EA, SIP) 

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