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Paper Abstract and Keywords
Presentation 2021-03-04 14:55
Parameter estimation of an IIR sound correction system in a real environment
Kento Kudo, Shinichi Inoue, Toshihisa Tanaka (TUAT) EA2020-84 SIP2020-115 SP2020-49
Abstract (in Japanese) (See Japanese page) 
(in English) When the acoustic equalizer is used as an equalizer for the reference system, it is necessary to measure the sound at each optimization step, which is not efficient. In this paper, we propose a method to estimate the parameters without playing back the actual sound each time. Specifically, we first assume the linearity of the acoustic equalizer and the acoustic system, and set up an equivalent model in which the connection order is interchanged. Next, we apply particle swarm optimization and Bayesian optimization to find the parameters of the IIR equalizer in this model. The results of numerical experiments show that the acoustic equalizer designed with the equivalent model can improve the SNR by about 4.6 dB in the evaluation of a real system.
Keyword (in Japanese) (See Japanese page) 
(in English) Acoustic correction / System identification / Particle swarm optimization / Bayesian optimization / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 398, SIP2020-115, pp. 146-151, March 2021.
Paper # SIP2020-115 
Date of Issue 2021-02-24 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 EA2020-84 SIP2020-115 SP2020-49

Conference Information
Conference Date 2021-03-03 - 2021-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech, Engineering/Electro Acoustics, Signal Processing, Ultrasonics, and Related Topics 
Paper Information
Registration To SIP 
Conference Code 2021-03-EA-US-SP-SIP-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Parameter estimation of an IIR sound correction system in a real environment 
Sub Title (in English)  
Keyword(1) Acoustic correction  
Keyword(2) System identification  
Keyword(3) Particle swarm optimization  
Keyword(4) Bayesian optimization  
1st Author's Name Kento Kudo  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Shinichi Inoue  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
3rd Author's Name Toshihisa Tanaka  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Date Time 2021-03-04 14:55:00 
Presentation Time 25 
Registration for SIP 
Paper # IEICE-EA2020-84,IEICE-SIP2020-115,IEICE-SP2020-49 
Volume (vol) IEICE-120 
Number (no) no.397(EA), no.398(SIP), no.399(SP) 
Page pp.146-151 
#Pages IEICE-6 
Date of Issue IEICE-EA-2021-02-24,IEICE-SIP-2021-02-24,IEICE-SP-2021-02-24 

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