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Paper Abstract and Keywords
Presentation 2008-03-07 13:40
Proposal of new measuring method for headphones and earphones
Kiyofumi Inanaga, Takeshi Hara (SONY Corp.), Gunnar Rasmussen (GRAS), Yasuhiro Riko (Riko Associates), Juro Ohga (SIT), Ikuo Oohira (Ashida Sound) EA2007-118
Abstract (in Japanese) (See Japanese page) 
(in English) Currently various types of acoustic coupler has been specified and employed in measuring headphones and earphones. Because the tester used to select one of couplers by his/her preference, it was difficult to compare the characteristics of various headphones and earphones in a unified condition. For the signal source for the measurement, measuring method using a signal which includes wide range of frequency has not been proposed, and then it was difficult to evaluate headphones and earphones in a condition actually used by customer. On the other hand, a measuring method was proposed to use HATS as a unified measuring platform and to use a signal source similar to real sound program. However, because there were problems in the shape of the ear hole, the reproducibility of the measured result was poor. To solve these problems, I propose a good reproducible measuring method and platform with a new ear hole shape.
Keyword (in Japanese) (See Japanese page) 
(in English) Headphones / Earphones / Measuring Method / Coupler / IEC / CENELEC / KEMAR / HATS  
Reference Info. IEICE Tech. Rep., vol. 107, no. 532, EA2007-118, pp. 37-42, March 2008.
Paper # EA2007-118 
Date of Issue 2008-02-29 (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)
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Conference Information
Committee EA  
Conference Date 2008-03-07 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) NTT Musashino R&D Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Audio signal and speech processing, enhancement/General 
Paper Information
Registration To EA 
Conference Code 2008-03-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of new measuring method for headphones and earphones 
Sub Title (in English)  
Keyword(1) Headphones  
Keyword(2) Earphones  
Keyword(3) Measuring Method  
Keyword(4) Coupler  
Keyword(5) IEC  
Keyword(6) CENELEC  
Keyword(7) KEMAR  
Keyword(8) HATS  
1st Author's Name Kiyofumi Inanaga  
1st Author's Affiliation SONY Corp. (SONY Corp.)
2nd Author's Name Takeshi Hara  
2nd Author's Affiliation SONY Corp. (SONY Corp.)
3rd Author's Name Gunnar Rasmussen  
3rd Author's Affiliation GRAS (GRAS)
4th Author's Name Yasuhiro Riko  
4th Author's Affiliation Riko Associates (Riko Associates)
5th Author's Name Juro Ohga  
5th Author's Affiliation Shibaura Institute of Technology (SIT)
6th Author's Name Ikuo Oohira  
6th Author's Affiliation Ashida Sound Co.,LTD (Ashida Sound)
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Speaker Author-1 
Date Time 2008-03-07 13:40:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2007-118 
Volume (vol) vol.107 
Number (no) no.532 
Page pp.37-42 
#Pages
Date of Issue 2008-02-29 (EA) 


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