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Paper Abstract and Keywords
Presentation 2010-08-06 10:30
An Objective Evaluation Method of Appropriate Broadcasting Sound Balance for Elderly Listeners
Tomoyasu Komori, Tohru Takagi (NHK), Koichi Kurozumi (NHK ES), Kiyotake Shoda (NHK), Kazuhiro Murakawa (Yamaki Electric Corp.) WIT2010-24
Abstract (in Japanese) (See Japanese page) 
(in English) Elderly people complain that they sometimes have a hard time hearing the narration of broadcast TV programs because the background sounds (background music, sound effects) are too loud. We conducted subjective evaluations to determine the relationship between TV volume and loudness of background sounds as it regards the comprehension of programs by elderly subjects. On the basis of objectively measured loudness levels, we confirmed two conditions under which elderly listeners perceive background sounds as too loud. One is a less than 6 phon difference between the narration and background sounds; the other is when background sounds are more than 2.5 phon louder than the average narration in the program. Based on these findings, we constructed a prototype system for objectively evaluating loudness. The device features a meter with seven color-coded levels that clearly shows the best sound balance for elderly listeners. The evaluation system was tested at a broadcasting station.
Keyword (in Japanese) (See Japanese page) 
(in English) Loudness level / elderly listeners / broadcast program speech / subjective evaluation / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 164, WIT2010-24, pp. 35-40, Aug. 2010.
Paper # WIT2010-24 
Date of Issue 2010-07-29 (WIT) 
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 WIT  
Conference Date 2010-08-05 - 2010-08-06 
Place (in Japanese) (See Japanese page) 
Place (in English) NHK Sci. Tech. Res. Labs. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WIT 
Conference Code 2010-08-WIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Objective Evaluation Method of Appropriate Broadcasting Sound Balance for Elderly Listeners 
Sub Title (in English) * 
Keyword(1) Loudness level  
Keyword(2) elderly listeners  
Keyword(3) broadcast program speech  
Keyword(4) subjective evaluation  
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1st Author's Name Tomoyasu Komori  
1st Author's Affiliation NHK Science and Technical Research Laboratories (NHK)
2nd Author's Name Tohru Takagi  
2nd Author's Affiliation NHK Engineering Service, INC (NHK)
3rd Author's Name Koichi Kurozumi  
3rd Author's Affiliation NHK Engineering Service, INC (NHK ES)
4th Author's Name Kiyotake Shoda  
4th Author's Affiliation NHK Morioka (NHK)
5th Author's Name Kazuhiro Murakawa  
5th Author's Affiliation Yamaki Electric Corporation. (Yamaki Electric Corp.)
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Speaker Author-1 
Date Time 2010-08-06 10:30:00 
Presentation Time 30 minutes 
Registration for WIT 
Paper # WIT2010-24 
Volume (vol) vol.110 
Number (no) no.164 
Page pp.35-40 
#Pages 6 
Date of Issue 2010-07-29 (WIT) 

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