Abstract: Echo hiding embeds secret data as surroundings into the carrier using after-shield effect of HAS.It is robust against some lose-constringent arithmetics.This paper introduces the digital fingerprinting arithmetic which embeds digital fingerprinting into audio works.Encrypts the fingerprinting before embeding it into the audio subsection.Experimental results show that it is robust against some user’s attacks.

Key words: digital audio fingerprinting, echo hiding, chaos manage

摘要： 回声隐藏是利用人类听觉系统的的后屏蔽效应，将秘密数据作为载体数据的环境条件而嵌入到载体数据中，其对一些有损压缩的算法具有一定的鲁棒性。主要介绍在音频作品中利用回声编码嵌入用户的指纹信息。为了进一步提高鲁棒性，在嵌入前先对指纹进行混沌处理，然后在音频的分段中嵌入指纹。实验表明，该指纹嵌入算法能够很好地抵抗常见的用户攻击，具有一定的鲁棒性。

关键词: 音频数字指纹, 回声隐藏, 混沌处理