Abstract
This paper proposed a new robust audio zero-watermarking algorithm which can be used to authenticate the copyright of digital audio. This algorithm has the following features: (1) it extracts the low frequency components of original audio to construct zero-watermarking by using the wavelet packet analysis method, ensures the imperceptibility of watermarking algorithm; (2) it uses cubic spline interpolation and multilevel scrambling technology to construct a meaningful zero-watermarking with a binary text image; it improves its safety and the robustness toward the attacks. Meanwhile, it is fairly straightforward to finish the authentication. The experimental result shows that this algorithm has strong robustness against typical common attacks and hostile attacks.
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