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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 6    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 6, June 2011 Edition
Improved Audio Watermarking Using DWT-SVD
Full Text(PDF, 3000)  PP.  
Author(s)
N.V.Lalitha, G.Suresh, Dr.V.Sailaja
KEYWORDS
Audio Watermarking, Attacks, DCT, DCT-SVD, DWT, DWT-SVD, MOS evalauation, Singular Value Decomposition.
ABSTRACT
Digital audio watermarking involves the concealment of data within a discrete audio file. Applications for this technology are numerous. Intellectual property protection is currently the main driving force behind research in this area. In this paper we present an efficient audio watermarking algorithm in the frequency domain by embedding an inaudible audio water mark. Comparison of two different algorithms i.e. Discrete Cosine Transform (DCT)-Singular Value Decomposition (SVD) and Discrete Wavelet Transform (DWT)-SVD is presented here. The effectiveness of these algorithms is verified by conducting experimentation. Experimental results show that the watermarked audio has good imperceptibility and is robust against different kinds of attacks, such as noise adding, re-sampling, cropping.
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