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Paper Abstract and Keywords
Presentation 2021-07-15 14:00
[Invited Talk] *
EA2021-8
Abstract (in Japanese) (See Japanese page) 
(in English) In-game Music analysis must be implemented to execute ultra-fast while maintaining high accuracy. For Beat tracker, I considered that the rhythm is as a very low frequency component and set up very large window buffer (VLW). The application used this method is available to realize less than 1 second / song analysis time, 0.01bpm accuracy, 90+% correct rate and only 8 samples (0.181ms) average error of downbeat position. For Chord tracker, I optimized CQT performance with exact chord and modal music theory. So it is available to analyze key signature and modal with 90+% correct rate. Also it is available to output chord names including triad, 4th, 7th and 9th tension chords with 80+% correct rate.
Keyword (in Japanese) (See Japanese page) 
(in English) Music Analysis / Beat Tracking / Chord Tracking / Key Signature Tracking / Modal Tracking / Constant-Q Transform / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 112, EA2021-8, pp. 40-45, July 2021.
Paper # EA2021-8 
Date of Issue 2021-07-08 (EA) 
ISSN Online edition: ISSN 2432-6380
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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 ASJ-H  
Conference Date 2021-07-15 - 2021-07-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Psychological and Physiological Acoustics, Speech, Musical Acoustics, Education in Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2021-07-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English)
Sub Title (in English)
Keyword(1) Music Analysis  
Keyword(2) Beat Tracking  
Keyword(3) Chord Tracking  
Keyword(4) Key Signature Tracking  
Keyword(5) Modal Tracking  
Keyword(6) Constant-Q Transform  
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Keyword(8)  
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Speaker Author-1 
Date Time 2021-07-15 14:00:00 
Presentation Time 50 minutes 
Registration for EA 
Paper # EA2021-8 
Volume (vol) vol.121 
Number (no) no.112 
Page pp.40-45 
#Pages
Date of Issue 2021-07-08 (EA) 


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