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Paper Abstract and Keywords
Presentation 2016-11-18 13:15
Theoretical analysis of vibration transmission characteristics of audio base having rotating exponential horn and experimental result
Masahide Kita, Kiminobu Nishimura, Kenji Manpuku (Kindai Univ.) EA2016-62 EMM2016-68
Abstract (in Japanese) (See Japanese page) 
(in English) Many kinds of audio-bases are used to better the sound quality of stereophonic equipments, but their effects seem not always better in improvement of sound quality. But, the mechanism of audio-base to a loaded equipment have not yet clarified, In previous study, we had clarified that an audio-base is effective to reduce inevitable vibration and electrical noise on stereophonic equipment and to improve the sound quality and summing localization under standard stereophonic representation. In this study, to clarify the effect of audio-base shaped in rotating exponential horn for loaded equipment, first we analyze its vibration transmission characteristic based on the wave equation. Then, we derived the input impedance of horn at “throat” or “mouth” to evaluate the difference in direction of vibration transmission characteristic. As the result, the audio base passes through vibration one direction and prevent opposite direction in specific frequency range. The same characteristic is obtained for vibration energy put in to audio-base. These characteristics correspond with experimental results on vibration velocity observed on the surfaces of test pieces shaped in rotating exponential curve.
Keyword (in Japanese) (See Japanese page) 
(in English) Audio Equipment / Exponential Horn / Audio Base / Wave equation / Vibration Transmission / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 302, EA2016-62, pp. 85-90, Nov. 2016.
Paper # EA2016-62 
Date of Issue 2016-11-10 (EA, EMM) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 EMM  
Conference Date 2016-11-17 - 2016-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Compal Hall (Oita) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2016-11-EA-EMM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical analysis of vibration transmission characteristics of audio base having rotating exponential horn and experimental result 
Sub Title (in English)  
Keyword(1) Audio Equipment  
Keyword(2) Exponential Horn  
Keyword(3) Audio Base  
Keyword(4) Wave equation  
Keyword(5) Vibration Transmission  
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1st Author's Name Masahide Kita  
1st Author's Affiliation Kindai University (Kindai Univ.)
2nd Author's Name Kiminobu Nishimura  
2nd Author's Affiliation Kindai University (Kindai Univ.)
3rd Author's Name Kenji Manpuku  
3rd Author's Affiliation Kindai University (Kindai Univ.)
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Speaker Author-1 
Date Time 2016-11-18 13:15:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2016-62, EMM2016-68 
Volume (vol) vol.116 
Number (no) no.302(EA), no.303(EMM) 
Page pp.85-90 
#Pages
Date of Issue 2016-11-10 (EA, EMM) 


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