Abstract
In this paper, we present a Self-Synchronization algorithm for audio watermarking to against all kind of audio attacks, especially, the synchronization attacks. A region corresponding to the area around the feature point of the original audio signal was exploited to embed the watermark information, thus the self-synchronization capability can be obtained. To embed the watermark information into the low frequency coefficients in DWT (Discrete Wavelet Transform) domain, high robustness can be achieved. A watermarking technique in the technique in the category of quantization index modulation was adopted in this algorithm due to its great robustness and blind feature. The performance of this proposed algorithm was evaluated by PSNR (Peak Signal Noise Ratio) method and Normalized Cross Correlation (NC) after various attacks. Simulation results show that this algorithm is robust against not only synchronization attacks but also various common attacks such as filtering, resample and so on.
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