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Paper Abstract and Keywords
Presentation 2007-11-16 10:00
A Study of Dynamic SSB Modulator for Parametric Loudspeaker
Shinichi Sakai (MEE), Hidetoshi Aiko, Kenta Nomura, Tomoo Kamakura, Kenichi Aoki (UEC), Shunji Yoshida (MEE) EA2007-80
Abstract (in Japanese) (See Japanese page) 
(in English) A parametric loudspeaker system, which presents remarkably narrow directivity compared with a conventional loudspeaker, is newly produced and examined. We have prototyped a single side-band (SSB) modulator employing the Weaver method and two signal processing technologies for the system. The technologies are to change the carrier signal dynamically according to the signal level of an audio input, and are to use the square-root and fourth-root processing methods for improving the input-output linearity of the demodulated sounds. The usefulness of the present modulation have been verified experimentally and numerically.
Keyword (in Japanese) (See Japanese page) 
(in English) Parametric loudspeaker / Digital modulator / Envelope / Weaver method / DSB / SSB / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 317, EA2007-80, pp. 1-6, Nov. 2007.
Paper # EA2007-80 
Date of Issue 2007-11-09 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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  
Conference Date 2007-11-15 - 2007-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To EA 
Conference Code 2007-11-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study of Dynamic SSB Modulator for Parametric Loudspeaker 
Sub Title (in English)  
Keyword(1) Parametric loudspeaker  
Keyword(2) Digital modulator  
Keyword(3) Envelope  
Keyword(4) Weaver method  
Keyword(5) DSB  
Keyword(6) SSB  
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Keyword(8)  
1st Author's Name Shinichi Sakai  
1st Author's Affiliation Mitsubishi Electric Engineering (MEE)
2nd Author's Name Hidetoshi Aiko  
2nd Author's Affiliation he University of Electro-Communications (UEC)
3rd Author's Name Kenta Nomura  
3rd Author's Affiliation he University of Electro-Communications (UEC)
4th Author's Name Tomoo Kamakura  
4th Author's Affiliation he University of Electro-Communications (UEC)
5th Author's Name Kenichi Aoki  
5th Author's Affiliation he University of Electro-Communications (UEC)
6th Author's Name Shunji Yoshida  
6th Author's Affiliation Mitsubishi Electric Engineering (MEE)
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Speaker Author-1 
Date Time 2007-11-16 10:00:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2007-80 
Volume (vol) vol.107 
Number (no) no.317 
Page pp.1-6 
#Pages
Date of Issue 2007-11-09 (EA) 


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