Abstract
To make digital audio watermarking accomplish both copyright protection and content authentication with localization, a novel multipurpose watermarking scheme is proposed in this paper. The fragile watermark (for content authentication) is embedded in the detail wavelet coefficients based on instantaneous mixing model of independent component analysis. While, the robust watermark (for copyright protection) is embedded in the secret key based on the essential features of the host audio, which are extracted based on the combination of discrete wavelet transform, discrete cosine transform and higher-order cumulant. Simulation results demonstrate the effectiveness of our algorithm in terms of transparency, robustness, detection reliability and tampering localization.
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