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| Presentation | 2015-03-13 13:50 Study on Watermarking for Digital Audio based on Adaptive Phase Modulation Nhut Minh Ngo, Masashi Unoki (JAIST)  EMM2014-102 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes a novel blind watermarking method for digital audio based on adaptive phase modulation. Audio signals are usually non- stationary, i.e., their own characteristics are time-variant. The features for watermarking have not been selected by combining the principle of variability, which affects the performance of the whole watermarking system. The proposed method embeds a watermark into an audio signal by adaptively modulating its phase with the embedded bit `0' or `1' using two all-pass filters. The frequency location of the filter pole-zero which characterizes the transfer function of the filter is adapted to distribution of signal power spectrum. The filter pole-zero locations are adapted in such a way that phase modulation causes the least distortion in watermarked signals to achieve the best sound quality. The experimental results show that the proposed method could embed inaudible watermark into various kinds of audio signals and correctly detect watermark without the aid of original signals. The proposed method has the ability to embed watermark into audio signals up to 150 bits per second with the bit error rate of less than 10%. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | audio watermarking / blind detection / adaptive phase modulation / all-pass filter / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 511, EMM2014-102, pp. 149-154, March 2015. | |
| Paper # | EMM2014-102 | |
| Date of Issue | 2015-03-05 (EMM) | |
| 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 | EMM2014-102 |
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| Conference Information | |
| Committee | EMM |
| Conference Date | 2015-03-12 - 2015-03-13 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EMM |
| Conference Code | 2015-03-EMM |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study on Watermarking for Digital Audio based on Adaptive Phase Modulation |
| Sub Title (in English) | |
| Keyword(1) | audio watermarking |
| Keyword(2) | blind detection |
| Keyword(3) | adaptive phase modulation |
| Keyword(4) | all-pass filter |
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| 1st Author's Name | Nhut Minh Ngo |
| 1st Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
| 2nd Author's Name | Masashi Unoki |
| 2nd Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
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| Speaker | Author-2 |
| Date Time | 2015-03-13 13:50:00 |
| Presentation Time | 25 minutes |
| Registration for | EMM |
| Paper # | EMM2014-102 |
| Volume (vol) | vol.114 |
| Number (no) | no.511 |
| Page | pp.149-154 |
| #Pages | 6 |
| Date of Issue | 2015-03-05 (EMM) |
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