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Paper Abstract and Keywords
Presentation 2011-08-09 17:00
Estimation of a sound image flow using a moving image processing technique
Kodai Saito, Kenji Ozawa, Yuichiro Kinoshita (Univ. Yamanashi), Satoshi Oode, Akio Ando (NHK) EA2011-57
Abstract (in Japanese) (See Japanese page) 
(in English) Movement of a sound image is an essential factor for perceiving the sense of presence from audio content. This study proposes an estimation method for sound image flow, which represents the movement of a sound image as a vector, based on binaural signals by using a moving image processing technique. First, interaural cross-correlation functions are calculated for short-duration binaural signals in multiple frequency bands. These functions are then converted into a still picture by substituting the value of the cross-correlation with the lightness of a pixel. These pictures are repeatedly produced for subsequent signal periods so that a moving picture is obtained. The block-matching technique extracts moving objects in the moving picture. Finally, sound image flows are calculated. The proposed method was applied to ten binaurally recorded sound samples, and these samples were evaluated in psychoacoustical experiments. The experimental results showed that the estimated sound image flows corresponded well with the sense of movement.
Keyword (in Japanese) (See Japanese page) 
(in English) Sound image / Movement / Block-matching technique / Interaural cross-correlation function / Presence / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 175, EA2011-57, pp. 43-48, Aug. 2011.
Paper # EA2011-57 
Date of Issue 2011-08-02 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee EA  
Conference Date 2011-08-09 - 2011-08-10 
Place (in Japanese) (See Japanese page) 
Place (in English) RIEC, Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Acoustic Signal Processing, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2011-08-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Estimation of a sound image flow using a moving image processing technique 
Sub Title (in English)  
Keyword(1) Sound image  
Keyword(2) Movement  
Keyword(3) Block-matching technique  
Keyword(4) Interaural cross-correlation function  
Keyword(5) Presence  
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1st Author's Name Kodai Saito  
1st Author's Affiliation University of Yamanashi (Univ. Yamanashi)
2nd Author's Name Kenji Ozawa  
2nd Author's Affiliation University of Yamanashi (Univ. Yamanashi)
3rd Author's Name Yuichiro Kinoshita  
3rd Author's Affiliation University of Yamanashi (Univ. Yamanashi)
4th Author's Name Satoshi Oode  
4th Author's Affiliation NHK STRL (NHK)
5th Author's Name Akio Ando  
5th Author's Affiliation NHK STRL (NHK)
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Speaker Author-2 
Date Time 2011-08-09 17:00:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2011-57 
Volume (vol) vol.111 
Number (no) no.175 
Page pp.43-48 
#Pages
Date of Issue 2011-08-02 (EA) 


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