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Digital Audio Data Hiding Scheme Using Perceptual Masking
Author(s): 
Pages: 42-44,112
Year: Issue:  2
Journal: APPLICATION RESEARCH OF COMPUTERS

Keyword:  数据处理音频数据隐藏掩蔽效应心理学模型盲提取;
Abstract: 提出了一种新的基于掩蔽效应的音频信号隐藏方案,利用宿主音频信号的心理学模型得到的掩蔽阈值,对伪随机序列调制后的隐藏消息进行频域掩蔽,将掩蔽后的伪随机消息嵌入宿主音频.该方法充分利用了人耳听觉系统(HAS)的掩蔽效应,同时利用伪随机信号的相关性,能够对嵌入后的音频信号进行盲提取得到隐藏消息.实验结果证明,嵌入后音频具有良好的不可察觉性,盲提取得到的隐藏消息误比特率较低.
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