摘要
目前数字音频水印算法,未曾在音频中嵌入同步信号,导致嵌入水印的音频存在不可感知性、抗攻击性和鲁棒性等性能差问题,为此提出基于声道低频能量比的自同步数字音频水印算法研究。采用降维和加密的方式,预处理数字水印;分段处理数字音频,并嵌入同步信号,采用声道低频能量比技术,将数字水印图像,嵌入数字音频;设计水印图像提取步骤,提取水印图像。实验结果表明,确定数字音频攻击方式,不可感知性、抗攻击性和鲁棒性等性能指标的计算公式,对比3组算法的不可感知性、抗攻击性和鲁棒性,此次研究的自同步数字音频水印算法,具有较优的不可感知性、抗攻击性和鲁棒性。
At present,digital audio watermarking algorithm has not embedded synchronous signal in audio,which leads to the poor performance of imperceptibility,anti-attack and robustness.Therefore,a self-synchronous digital audio watermarking algorithm based on the low frequency energy ratio of sound channel is proposed.Using dimension reduction and encryption to preprocess the digital watermark;segmenting the digital audio and embedding the synchronous signal,using the low-frequency energy ratio technology of sound channel to embed the digital watermark image into the digital audio;designing the watermark image extraction steps to extract the watermark image.The experimental results show that determine the digital audio attack mode,the calculation formula of imperceptibility,anti attack and robustness,and compare the imperceptibility,anti attack and robustness of the three groups of algorithms.The self-synchronization digital audio watermarking algorithm in this study has better imperceptibility,anti attack and robustness.
作者
滕焱
TENG Yan(Fuyang Preschool Education College,Anhui Fuyang 236015,China)
出处
《齐齐哈尔大学学报（自然科学版）》
2021年第5期6-10,25,共6页
Journal of Qiqihar University(Natural Science Edition)
基金
2020年度安徽省质量工程省级教学研究项目“基于知识社会创新形态下运用微课提升高职音乐教学质量的路径探索”(2020jyxm1425)
2020年度安徽省质量工程省级教学团队(音乐教育专业实践课教学团队)(2020jxtd192)
关键词
声道低频能量比
自同步数字
数字音频
水印算法
channel low frequency energy ratio
self-synchronization digital
digital audio
watermarking algorithm
作者简介
滕焱(1980-),女,安徽阜阳人,讲师,硕士,主要从事音乐学应用研究,tennn999@163.com。
