A study on audio watermarking method based on the cochlear delay characteristics
A study on audio watermarking method based on the cochlear delay characteristics
复制标题
基于耳蜗延迟特性的音频水印方法研究
DOI：
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复制
发表时间：
2008
期刊：
影响因子：
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通讯作者：
M. Unoki
中科院分区：
文献类型：
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作者：
Daiki Hamada;M. Unoki
我们提出了一种基于耳蜗延迟特性的新型音频水印方法。该方法由两个过程组成：数据嵌入和数据检测。数据嵌入过程是通过应用两种带有耳蜗延迟的全通（cid：2）滤波器，然后根据水印从中选择（cid：2）滤波信号来进行的。数据检测过程涉及根据原始声音和加水印声音之间的相位差估计 (cid:2) 滤波器的群延迟来检测嵌入数据。我们为 (cid:2) 滤波器设计了最佳群延迟。我们通过进行三个客观的鲁棒性测试（针对下采样、幅度压缩和 mp3 压缩）来对所提出的方法进行实验评估。结果表明，所提出的方法能够准确、稳健地从带水印的声音中检测出听不见的嵌入数据。
We propose a novel audio watermarking method based on the cochlear delay characteristics. This method consists of two processes: data embedding and data detection. The data embedding process was carried out by applying two types of all-pass (cid:2)lters with the cochlear delays, and then selecting the (cid:2)ltered signal from them according to the watermarks. The data detection process involved by estimating the group delay of the (cid:2)lter from the phase difference between the original and watermarked sounds to detect the embedded data. We designed optimal group delays for the (cid:2)lters. We experimentally evaluated the proposed method by carrying out three objective tests of robustness (against down sampling, amplitude compression, and mp3-compression). Results showed that the proposed method precisely and robustly detected the inaudible embedded data from the watermarked sounds.
两个脉冲之间感知同步性的判断及其与耳蜗延迟的关系。
DOI：
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发表时间：
2007
期刊：
Proc. 23rd Annual Meeting. of the International Society for Psychophysics-Fechner Day 2007(Tokyo, Japan) (Winner of International Society for Psychophysics Bursary)
影响因子：
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作者：
Aiba;E.;Tsuzaki;M.;Tanaka;S.;and Unoki;M.
通讯作者：
M.