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摘要: 结合数字音频时频域统计特性及同步码技术, 提出了一种可有效抵抗去同步攻击的混合域数字音频水印嵌入算法. 该算法首先结合数字水印与同步码(大小), 对原始音频载体进行分段处理, 并将每个音频数据段分割成两部分用于嵌入同步码与水印信息; 然后利用时间域音频样本统计特性, 将同步码信息嵌入到音频样本的统计均值上; 最后根据频率域小波系数统计特性, 将数字水印嵌入到低频小波系数的平均值内.Abstract: In this paper, a new robust digital audio watermarking algorithm against desynchronization attacks is proposed, in which the audio statistic characteristics and synchronization code are utilized. Firstly, the origin digital audio data are segmented and then each segment is cut into two sections. Secondly, with the spatial watermarking technique, synchronization code is embedded into the statistic average value of audio samples in the first section. Finally, the DWT is performed on the second section, and the digital watermark is embedded into the statistic average value of low frequency components.
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