Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2008-12-05 11:15
Directional Sound Radiation System using a Planar Diaphragm Incorporating Multiple Vibrators -- Influence of diaphragm shape and vibrator positions toward sound directivity controlling --
Yoko Yamakata, Michiaki Katsumoto, Toshiyuki Kimura (National Institute of Information and Communications Technology) EA2008-112
Abstract (in Japanese) (See Japanese page) 
(in English) We have constructed a sound production system that can control the sound directivity by controlling bending vibration of a large planar diaphragm using multiple vibrators.
This paper indicates the selectability of sound radiation directivity by modulating such as the shape and thickness of the diaphragm and the setting position of the vibrators. We simulated the diaphragm vibration using the Finite Element Method (FEM) and the radiated sound simulation using the Boundary Element Method (BEM). Firstly, we confirm the simulation results are approximately coincident with the real stuff behavior by measuring the bending vibration and the radiated sound directivity and comparing these results with the simulation results.
Secondly, we indicated that the radiated sound directivity mainly varies continuously with the parameter variation.
Keyword (in Japanese) (See Japanese page) 
(in English) directional sound radiation / sound reproduction system / finite element method / boundary element method / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 333, EA2008-112, pp. 65-70, Dec. 2008.
Paper # EA2008-112 
Date of Issue 2008-11-27 (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 EA2008-112

Conference Information
Committee EA  
Conference Date 2008-12-04 - 2008-12-05 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2008-12-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Directional Sound Radiation System using a Planar Diaphragm Incorporating Multiple Vibrators 
Sub Title (in English) Influence of diaphragm shape and vibrator positions toward sound directivity controlling 
Keyword(1) directional sound radiation  
Keyword(2) sound reproduction system  
Keyword(3) finite element method  
Keyword(4) boundary element method  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoko Yamakata  
1st Author's Affiliation National Institute of Information and Communications Technology (National Institute of Information and Communications Technology)
2nd Author's Name Michiaki Katsumoto  
2nd Author's Affiliation National Institute of Information and Communications Technology (National Institute of Information and Communications Technology)
3rd Author's Name Toshiyuki Kimura  
3rd Author's Affiliation National Institute of Information and Communications Technology (National Institute of Information and Communications Technology)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2008-12-05 11:15:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2008-112 
Volume (vol) vol.108 
Number (no) no.333 
Page pp.65-70 
#Pages 6 
Date of Issue 2008-11-27 (EA) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan