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Paper Abstract and Keywords
Presentation 2007-06-29 15:00
Free viewpoint and listening point contents for musical performance using blind signal separation and head related transfer function
Kenta Niwa, Takanori Nishino, Kazuya Takeda (Nagoya Univ.) EA2007-32
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes the development of a FTV(Free viewpoint and listening point TV) system on which users can view images and listen to sounds at arbitrary positions. In this system, the ray-space method is used for the arbitrary viewpoint images, and a signal separation method based on frequency-domain independent component analysis is used for the arbitrary listening point sound. For the arbitrary listening point sound, individual musical instrument performances are extracted from the signals composed by various instruments, and users can listen at any arbitrary positions by synthesizing the signals generated by convoluting the separated signals and head-related transfer functions. As separation performances have a influence on auditory lateralization, the experiments to examine how separation performances are influenced by room reverberation, directivity of the sound source, or observation point are conducted using signals transduced by loudspeakers. We also collected the images and the sound signals in a real environment and publc FTV demonstrations the web. We propose a microphone pair selection-type method and a novel evaluation measure of separation performance in the case we cannot obtain reference signals. As a result, the proposed method were found to be effective for actual musical performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Free viepoint and listening point / Sound source separation / Frequency-domain ICA / Head transfer function / reproduction of acoustic field / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 120, EA2007-32, pp. 31-36, June 2007.
Paper # EA2007-32 
Date of Issue 2007-06-22 (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 EA2007-32

Conference Information
Committee EA  
Conference Date 2007-06-29 - 2007-06-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Blind signal processing / General 
Paper Information
Registration To EA 
Conference Code 2007-06-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Free viewpoint and listening point contents for musical performance using blind signal separation and head related transfer function 
Sub Title (in English)  
Keyword(1) Free viepoint and listening point  
Keyword(2) Sound source separation  
Keyword(3) Frequency-domain ICA  
Keyword(4) Head transfer function  
Keyword(5) reproduction of acoustic field  
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1st Author's Name Kenta Niwa  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takanori Nishino  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Kazuya Takeda  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2007-06-29 15:00:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2007-32 
Volume (vol) vol.107 
Number (no) no.120 
Page pp.31-36 
#Pages 6 
Date of Issue 2007-06-22 (EA) 

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