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Paper Abstract and Keywords
Presentation 2016-03-29 09:00
[Poster Presentation] Majorisation-minimization based composite autoregressive system optimization with a glottal source model prior
Lauri Juvela (Aalto Univ.), Hirokazu Kameoka (Tokyo Univ.), Junichi Yamagishi (NII) EA2015-115 SIP2015-164 SP2015-143
Abstract (in Japanese) (See Japanese page) 
(in English) The Composite Autoregressive System solves the speech source-filter decomposition problem in a robust manner and can be modified for glottal inverse filtering by introducing a source spectral tilt via a glottal model based prior. This type of inverse filtering has further applications in excitation modelling for parametric speech synthesis. In this work we derive new majorisation-minimization based update rules for the Composite Autoregressive model, resulting in faster convergence compared to the original EM-based approach. Additionally, we introduce generalised Gamma distribution priors that provide more flexibility in the optimization and enable the use of an informative prior for the glottal source spectrum.
Keyword (in Japanese) (See Japanese page) 
(in English) Composite autoregressive system / Glottal inverse filtering / Majorization-Minimization / LF model / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 523, SP2015-143, pp. 273-278, March 2016.
Paper # SP2015-143 
Date of Issue 2016-03-21 (EA, SIP, SP) 
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 EA2015-115 SIP2015-164 SP2015-143

Conference Information
Committee EA SP SIP  
Conference Date 2016-03-28 - 2016-03-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Beppu International Convention Center B-ConPlaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics 
Paper Information
Registration To SP 
Conference Code 2016-03-EA-SP-SIP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Majorisation-minimization based composite autoregressive system optimization with a glottal source model prior 
Sub Title (in English)  
Keyword(1) Composite autoregressive system  
Keyword(2) Glottal inverse filtering  
Keyword(3) Majorization-Minimization  
Keyword(4) LF model  
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1st Author's Name Lauri Juvela  
1st Author's Affiliation Aalto University (Aalto Univ.)
2nd Author's Name Hirokazu Kameoka  
2nd Author's Affiliation University of Tokyo (Tokyo Univ.)
3rd Author's Name Junichi Yamagishi  
3rd Author's Affiliation National Institute of Informatics (NII)
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Speaker Author-1 
Date Time 2016-03-29 09:00:00 
Presentation Time 90 minutes 
Registration for SP 
Paper # EA2015-115, SIP2015-164, SP2015-143 
Volume (vol) vol.115 
Number (no) no.521(EA), no.522(SIP), no.523(SP) 
Page pp.273-278 
#Pages 6 
Date of Issue 2016-03-21 (EA, SIP, SP) 

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