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JEET, Vol. 13, No. 1, January 2018
An Efficient Selective Method for Audio Watermarking Against De-synchronization Attacks
Baydaa Mohammad Mushgil
Area D - Information and Control
Abstract The high capacity audio watermarking algorithms are facing a main challenge in satisfying the robustness against attacks especially on de-synchronization attacks. In this paper, a robust and a high capacity algorithm is proposed using segment selection, Stationary Wavelet Transform (SWT) and the Quantization Index Modulation (QIM) techniques along with new synchronization mechanism. The proposed algorithm provides enhanced trade-off between robustness, imperceptibility, and capacity. The achieved watermarking improves the reliability of the available watermarking methods and shows high robustness towards signal processing (manipulating) attacks especially the de-synchronization attacks such as cropping, jittering, and zero inserting attacks. For imperceptibility evaluation, high signal to noise ratio values of above 22 dB has been achieved. Also subjective test with volunteer listeners shows that the proposed method has high imperceptibility with Subjective Difference Grade (SDG) of 4.76. Meanwhile, high rational capacity up to 176.4 bps is also achieved.
Keyword Stationary wavelet transform (SWT),Quantization Index Modulation (QIM),Desynchronization attacks,Jittering attack,Cropping attack,Subjective listening grade(SDG),Signal to noise ratio (SNR)
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