计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (36): 100-102.

• 学术探讨 • 上一篇    下一篇

基于小波变换的语音隐藏算法

陈雪松1,2,金七顺2,杨永田1   

  1. 1.哈尔滨工程大学 计算机科学与技术学院,哈尔滨 150001
    2.大庆石油学院 电气信息工程学院,黑龙江 大庆 163318
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-21 发布日期:2007-12-21
  • 通讯作者: 陈雪松

Speech hiding algorithm based on wavelet transform

CHEN Xue-song1,2,JIN Qi-shun2,YANG Yong-tian1   

  1. 1.College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China
    2.Faculty of Electricity and Information Engineering,Daqing Petroleum Institute,Daqing,Heilongjiang 163318,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-12-21 Published:2007-12-21
  • Contact: CHEN Xue-song

摘要: 提出了一种基于小波变换的语音隐藏方法,把一段语音作为秘密信息嵌入一段数字音频信号中,其目的是用音频信号作伪装来传递秘密的语音信息或把语音信息作为一种标记来保护音频作品。这种方法根据人类听觉系统的特点,利用小波对语音信号进行压缩,增加了数据的嵌入量。载体音频信号小波变换后,选择部分小波系数用适当的嵌入参数嵌入信息。实验表明该算法的隐蔽性好,隐藏的数据量大,对常见的信号处理操作具有较强的稳健性,符合掩蔽通信的要求。

关键词: 信息隐藏, 小波变换, 嵌入量

Abstract: This paper proposes a kind of speech hiding algorithm based on wavelet transform.It embeds a speech as the secret message into a digital audio signal in order to transmit secret message under the camouflage of the audio signal or protect the audio product by using the speech signature as a mark.The method described in this paper makes use of the Human Auditory System(HAS) characteristics and the wavelet to compress the speech signature,so it increases the capacity.A proper parameter and some wavelet coefficients of the cover audio signal are selected to embed information.The experimental results show that the algorithm can hide high capacity of date imperceptibly and it is robust to routine operations on digital signal.

Key words: information hiding, wavelet transform, embedded quantity