Paper Abstract and Keywords |
Presentation |
2006-09-14 10:00
Expansion Techniques of Embedding Audio Watermark Data Rate for Constructing Ubiquitous Acoustic Spaces Toshio Modegi (DNP) MoMuC2006-37 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We are proposing “Ubiquitous Acoustic Spaces”, where each sound source can emit some address information and makes us automatically access to its related cyber space, using mobile devices. In order to realize this, we have proposed a novel audio watermarking technique, which enables contactless asynchronous detection of embedded watermarks through speaker and microphone devices. However its embedding data rate was around 10 [bps], which was not sufficient for embedding such as URL texts.
Therefore, we have extended the embedding frequency range and proposed a duplicated embedding algorithm, which uses both previously proposed frequency division method and temporal division method. By these improvements, possible embedding data rate could be extended to 61.5 [bps], and we could extract watermarks through public telephone networks, even from a cell phone speaker.
In this paper, we describe abstracts of our improved watermark embedding algorithms, and experimental results of extraction precision on several signal capturing conditions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
acoustic spaces / ubiquitous / audio watermark / embedding data rate / cell phone / public phone network / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, Sept. 2006. |
Paper # |
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Date of Issue |
2006-09-07 (MoMuC) |
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) |
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MoMuC2006-37 |
Conference Information |
Committee |
MoNA ITE-BCT ITE-CE |
Conference Date |
2006-09-14 - 2006-09-15 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Osaka Musium of History |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Integration of Mobile Communication and Broadcasting |
Paper Information |
Registration To |
MoNA |
Conference Code |
2006-09-MoMuC-ITE-BCT-ITE-CE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Expansion Techniques of Embedding Audio Watermark Data Rate for Constructing Ubiquitous Acoustic Spaces |
Sub Title (in English) |
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acoustic spaces |
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ubiquitous |
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audio watermark |
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embedding data rate |
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cell phone |
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public phone network |
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1st Author's Name |
Toshio Modegi |
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Dai Nippon Printing Co., Ltd. (DNP) |
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Speaker |
Author-1 |
Date Time |
2006-09-14 10:00:00 |
Presentation Time |
25 minutes |
Registration for |
MoNA |
Paper # |
MoMuC2006-37 |
Volume (vol) |
vol.106 |
Number (no) |
no.245 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2006-09-07 (MoMuC) |
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