This paper presents the Cosine algorithm that can best restrain DC component for amplitude attenuation.

提出一种能很好抑制幅值衰减的直流分量的余弦算法。

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This paper selects the algorithm by quantifying the amplitude of the transform domain coefficient and uses this algorithm in the discrete Fourier domain and the discrete cosine domain.

在众多语音信息隐藏算法中，挑选出一种幅度量化的信息嵌入方案，分别在离散余弦和小波变换域上，通过对变换域系数的幅度量化来隐藏信息；

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Compared with the amplitude-frequency characteristic of the window functions often used at present, its property has an advantage over the rising-cosine function improved.

与目前常用的几种窗函数的频率特性相比较，其性能优于改进的升余弦窗函数。

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