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School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore
[ "Baiying LEI, E-mail: leib0001@e.ntu.edu.sg" ]
Received:06 April 2011,
Revised:2011-12-;8,
Published:2012-01
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Baiying LEI, IngYann SOON. A multipurpose audio watermarking algorithm with synchronization and encryption[J]. Frontiers of Information Technology & Electronic Engineering, 2012, 13(1): 11-19.
Baiying LEI, IngYann SOON. A multipurpose audio watermarking algorithm with synchronization and encryption[J]. Frontiers of Information Technology & Electronic Engineering, 2012, 13(1): 11-19. DOI: 10.1631/jzus.C1100085.
We propose a new multipurpose audio watermarking scheme in which two complementary watermarks are used. For audio copyright protection
the watermark data with copyright information or signature are first encrypted by Arnold transformation. Then the watermark data are inserted in the low frequency largest significant discrete cosine transform (DCT) coefficients to obtain robustness performance. For audio authentication
a chaotic signal is inserted in the high frequency insignificant DCT coefficients to detect tampered regions. Furthermore
the synchronization code is embedded in the audio statistical characteristics to resist desynchronization attacks. Experimental results show that our proposed method can not only obtain satisfactory detection and tampered location
but also achieve imperceptibility and robustness to common signal processing attacks
such as cropping
shifting
and time scale modification (TSM). Comparison results show that our method outperforms some existing methods.
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