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Paper Abstract and Keywords
Presentation 2009-05-29 11:00
[Invited Talk] Technologies and Standardization of Speech and Audio Coding
Takehiro Moriya (NTT CS Labs.) EA2009-11 SIP2009-11 SP2009-16
Abstract (in Japanese) (See Japanese page) 
(in English) This paper introduces standardization activities in ITU-T and ISO/IEC MPEG, comparing speech coding schemes based on time domain prediction and audio coding schemes based on frequency domain transform coding. ITU-T has standardized high compression telephone bandwidth speech coding schemes for two way communications and is extending to higher frequency bands and scalable coding to cover audio signals. In contrast, MPEG has standardized audio coding schemes for one way communications and is extending to multi-channel coding, lossless coding and low delay coding. It is interesting that the standardization targets for speech and audio have started to converge recently. The MPEG USAC (Unified Speech and Audio Coding) scheme, which is being actively developed, may make use of most of the important technologies for speech and audio that have been developed so far.
Keyword (in Japanese) (See Japanese page) 
(in English) ITU-T / MPEG / predictive coding / transform coding / USAC / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 57, SP2009-16, pp. 55-58, May 2009.
Paper # SP2009-16 
Date of Issue 2009-05-21 (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 EA2009-11 SIP2009-11 SP2009-16

Conference Information
Committee EA SIP SP  
Conference Date 2009-05-28 - 2009-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2009-05-EA-SIP-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Technologies and Standardization of Speech and Audio Coding 
Sub Title (in English)  
Keyword(1) ITU-T  
Keyword(2) MPEG  
Keyword(3) predictive coding  
Keyword(4) transform coding  
Keyword(5) USAC  
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1st Author's Name Takehiro Moriya  
1st Author's Affiliation NTT Communication Science Laboratories (NTT CS Labs.)
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Speaker Author-1 
Date Time 2009-05-29 11:00:00 
Presentation Time 60 minutes 
Registration for SP 
Paper # EA2009-11, SIP2009-11, SP2009-16 
Volume (vol) vol.109 
Number (no) no.55(EA), no.56(SIP), no.57(SP) 
Page pp.55-58 
#Pages 4 
Date of Issue 2009-05-21 (EA, SIP, SP) 

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