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In this paper, a mean quantization based synchronous digital audio watermarking method on wavelet domain is proposed, which is a blind detection algorithm to detect without the original audio signal. It introduces coefficient of mean quantization algorithm, and averagely quantize low-frequency coefficients for watermarking after wavelet decomposition to audio signal. It also bring the concept of embedded synchroniztion signal to determine the position of watermark for resisting the shift, cutting and other attacks. The results of experiments validate the robustness and resistance to attack of this method.

A Mean quantization based synchronous digital audio watermarking method on wavelet domain