文章基本信息

标题：A Novel Audio Watermarking Based On Synergic FFT and DWT
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作者：Mahdi Mosleh ; Saeed Setayeshi ; Mohammad Mosleh 等
期刊名称：International Journal of Computer Science and Network Solutions
印刷版ISSN：2345-3397
出版年度：2014
卷号：2
期号：5
页码：98-106
出版社：International Journal of Computer Science and Network Solutions
摘要：With the recent development of information technology and computer network, digital format ofdata has become more and more popular. However, a major problem faced by digital data providersand owners is protecting data from unauthorized copying and distribution. As a solution to theproblem, digital watermark technology is now attracting attention as new method of protectionagainst said unauthorized copying and distribution.The aim of the digital audio watermarking is to take prespecified data that carries certaininformation and hide it within the audio stream such that it is not audible to the human ear (i.e.,transparent) but at the same time renders the file more resistant to removal (i.e.,robust)(Katzenbeisser et al,2000).In this paper, we propose a new audio watermarking method, in the way that human auditorysystem is not sensitive to it. The proposed method can produce the watermark sequnce by a shiftregister and embed it in to levels 3-4 of wavelet transform. The extraction algorithm of theproposed method extracts two watermark sequences from watermarked data. The final watermarksequence will be generated again by a shift register. The experimental results show that theproposed method is very robust to noise. In order to evaluate, the proposed method is comparedwith the methods based on FFT, Echo (Kim et al, 2003)( Kim et al,2004).
关键词：AudioWatermarking; Discrete Wavelet; Transform (DWT); Shift Register