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Paper Abstract and Keywords
Presentation 2021-03-03 14:05
[Poster Presentation] Subjective optimization of stereo width shrink algorithm in headphones reproduction
Yui Ueno, Mitsunori Mizumachi (kyutech.), Toshiharu Horiuchi (KDDI Research, Inc.) EA2020-68 SIP2020-99 SP2020-33
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, most of casual listeners listen to music via headphones and earphones. However, almost all of music sources assume the reproduction using loudspeakers and cannot naturally reproduce spatial impression through earphones and headphones. In this study, stereo music sources are converted by either binaural rendering or stereo width control by an amplitude difference, stereo width control by a phase difference. The first method convolves head-related impulse responses into the original stereo sources, and the second method shrinks the perceptual spatial width by adding the monaural signal into original stereo sources, the final method shrinks the perceptual spatial width by giving the signals of left and right a phase difference.
To investigate perceptual differences of three methods, the most suitable stereo widths of the stereo width shrink algorithms are decided by comparing with binaural rendering.
Keyword (in Japanese) (See Japanese page) 
(in English) stereophonic sound source / headphone reproduction / spatial impression / binaural rendering / stereo width control / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 397, EA2020-68, pp. 51-56, March 2021.
Paper # EA2020-68 
Date of Issue 2021-02-24 (EA, SIP, SP) 
ISSN 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 EA2020-68 SIP2020-99 SP2020-33

Conference Information
Committee EA US SP SIP IPSJ-SLP  
Conference Date 2021-03-03 - 2021-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech, Engineering/Electro Acoustics, Signal Processing, Ultrasonics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2021-03-EA-US-SP-SIP-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Subjective optimization of stereo width shrink algorithm in headphones reproduction 
Sub Title (in English)  
Keyword(1) stereophonic sound source  
Keyword(2) headphone reproduction  
Keyword(3) spatial impression  
Keyword(4) binaural rendering  
Keyword(5) stereo width control  
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1st Author's Name Yui Ueno  
1st Author's Affiliation Kyushu Institute of Technology (kyutech.)
2nd Author's Name Mitsunori Mizumachi  
2nd Author's Affiliation Kyushu Institute of Technology (kyutech.)
3rd Author's Name Toshiharu Horiuchi  
3rd Author's Affiliation KDDI Research, Inc. (KDDI Research, Inc.)
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Speaker Author-1 
Date Time 2021-03-03 14:05:00 
Presentation Time 90 minutes 
Registration for EA 
Paper # EA2020-68, SIP2020-99, SP2020-33 
Volume (vol) vol.120 
Number (no) no.397(EA), no.398(SIP), no.399(SP) 
Page pp.51-56 
#Pages 6 
Date of Issue 2021-02-24 (EA, SIP, SP) 

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