摘要： 针对听觉感知无差异时的局部相位失真条件，在宽带音频信号实验的基础上，提出一种利用局部相位分区实现信息隐藏的新算法。相对于经典的相位调制算法，利用局部相位信息，在保证听觉相似性的同时，能提高信息的嵌入量、改善误码率。理论分析和实验结果表明了该算法的有效性。

关键词: 音频信号, 信息隐藏, 听觉感知, 相位编码

Abstract: This paper puts forward a new audio information hiding algorithm, namely partial phase division correcting method based on hearing perception experiments of wideband audio signals, which is for partial phase distortion conditions under no hearing perception difference. Compared with the classical audio information hiding algorithms, theoretical analysis and experiment results show the effectiveness of this algorithm because of its using partial phase information to assure the auditory comparability. It enhances the embedded magnitude and improves the PER.

Key words: audio signals, information hiding, auditory perception, phase coding

中图分类号: 

• TP301.6