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Paper Abstract and Keywords
Presentation 2022-12-22 16:50
[Poster Presentation] Spectrum Analysis of Radiated Sound from Kotsuzumi to Evaluate Differences among Players and Materials
Tomohisa Funakura (Tokyo Tech), Kengo Kimotsuki, Mutsuo Ishikawa (Toin Univ. of Yokohama), Marie Tabaru (Tokyo Tech) EA2022-67
Abstract (in Japanese) (See Japanese page) 
(in English) There are few reports on kotsuzumi tonal adjustments and comparisons of multiple kotsuzumi or different players, so there are many unexplored aspects of kotsuzumi sound. In this study, we analyzed the spectra of kotsuzumi sounds of multiple kotsuzumi and different players to clarify the acoustic characteristics of kotsuzumi and the sensitivity of the players. 2 types of kotsuzumi, different numbers and positions of washi paper, drum sounds of different players, and clapping and drum sounds were compared. The results are as follows. The traditional kotsuzumi has a harmonious overall sound and its frequency response is composed of integer harmonics. The addition of washi paper modulates the vibration of the back skin and harmonizes the entire kotsuzumi. There is a clear difference between professionals and inexperienced players. Although hand characteristics are involved in the sound of the kotsuzumi, we found that the characteristics of the instrument itself were stronger in the professionals than in the hands.
Keyword (in Japanese) (See Japanese page) 
(in English) Kotsuzumi sound / Spectrum analysis / Radiation sound / Ancient instrumental acoustics / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 324, EA2022-67, pp. 36-41, Dec. 2022.
Paper # EA2022-67 
Date of Issue 2022-12-15 (EA) 
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)
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Conference Information
Committee EA US  
Conference Date 2022-12-22 - 2022-12-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Satellite Campus Hiroshima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, etc. 
Paper Information
Registration To EA 
Conference Code 2022-12-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Spectrum Analysis of Radiated Sound from Kotsuzumi to Evaluate Differences among Players and Materials 
Sub Title (in English)  
Keyword(1) Kotsuzumi sound  
Keyword(2) Spectrum analysis  
Keyword(3) Radiation sound  
Keyword(4) Ancient instrumental acoustics  
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1st Author's Name Tomohisa Funakura  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Kengo Kimotsuki  
2nd Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
3rd Author's Name Mutsuo Ishikawa  
3rd Author's Affiliation Toin University of Yokohama (Toin Univ. of Yokohama)
4th Author's Name Marie Tabaru  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Speaker Author-1 
Date Time 2022-12-22 16:50:00 
Presentation Time 120 minutes 
Registration for EA 
Paper # EA2022-67 
Volume (vol) vol.122 
Number (no) no.324 
Page pp.36-41 
#Pages 6 
Date of Issue 2022-12-15 (EA) 

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