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Paper Abstract and Keywords
Presentation 2008-07-18 15:15
Binaural Hearing Aid System Combining SIMO-Model-Based ICA and HRTF-Free Binary Masking
Ryota Takafuji, Yoshimitsu Mori, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST) EA2008-41
Abstract (in Japanese) (See Japanese page) 
(in English) In our daily life, we can hear not only the target sounds but also various sounds.
Because of these undesired sounds, it is probably difficult to listen
to the companion's speech.
In the noisy environment, it is a good solution for the communication that
a system suppresses the noises and enhances the target sounds.
To realize that system, we have proposed a binaural hearing-aid system
based on two-stage blind sound source separation (BSS) method.
This system consists of two techniques; a single-input multiple-output
(SIMO)-model-based independent component analysis and
binaural-output-capable SIMO-model-based binary masking (SIMO-BM).
However owing to user-specific head-related transfer function (HRTF)
for receiving the sounds and adopting SIMO-BMs in the 2nd stage, the
previous system has directivity dependency for sound sources' layout.
In this paper, we propose a new BSS method which mitigates
user-native HRTF and keep the separation performance at a high level.
The experimental results reveal that the separation performance can be
improved by using the proposed method in case of sound sources are
located lopsidedly in a realistic reverberant condition.
Keyword (in Japanese) (See Japanese page) 
(in English) Blind source separation / binaural signal / SIMO model / independent component analysis / binary masking / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 143, EA2008-41, pp. 25-30, July 2008.
Paper # EA2008-41 
Date of Issue 2008-07-11 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EA2008-41

Conference Information
Committee EA  
Conference Date 2008-07-18 - 2008-07-18 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2008-07-EA 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Binaural Hearing Aid System Combining SIMO-Model-Based ICA and HRTF-Free Binary Masking 
Sub Title (in English)  
Keyword(1) Blind source separation  
Keyword(2) binaural signal  
Keyword(3) SIMO model  
Keyword(4) independent component analysis  
Keyword(5) binary masking  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ryota Takafuji  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Yoshimitsu Mori  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Hiroshi Saruwatari  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Kiyohiro Shikano  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2008-07-18 15:15:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2008-41 
Volume (vol) vol.108 
Number (no) no.143 
Page pp.25-30 
#Pages 6 
Date of Issue 2008-07-11 (EA) 

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