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Spread Spectrum Audio Watermarking Using Vector Space Projections

Abubakar, Adamu I. and Zeki, Akram M. and Chiroma, Haruna and Muaz, Sanah Abdullahi and Sari, Eka Novita and Herawan, Tutut (2015) Spread Spectrum Audio Watermarking Using Vector Space Projections. In: Advances in Intelligent Informatics. Advances in Intelligent Systems and Computing, 320 . Springer, Switzerland, pp. 297-307. ISBN 978-3-319-11217-6 (print); 978-3-319-11218-3 (online)

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Abstract

Efficient watermarking techniques guarantee inaudibility and robustness against signal degradation. Spread spectrum watermarking technique makes it harder for unauthorized adversary to detect the position of the embedded watermark in the carrier file, because the watermark bits are spread in the carrier medium. Unfortunately, there is a high possibility that synchronization of the watermark bits and carrier bits will go out of phase. This will lead to watermark detection problem in the carrier bit sequence. In this paper, we propose a vector space projections approach on spread spectrum audio watermarking technique, in order to presents both the watermark bits and carrier bits as vectors. Similarities of watermark vector to a carrier vector are resolve by the normalized dot product of the cosine of angle between them for embedding. After embedding and extraction by the technique, signal processing methods in the form of attacks were applied. Our approach proved robust when compared with other audio watermarking techniques. This technique gives good results and was found to be robust on performance test.

Item Type: Book Section
Uncontrolled Keywords: Audio watermarking; Spread spectrum; Vector space projections
Subjects: Q Science > QA Mathematics > QA76 Computer software
Faculty/Division: Faculty of Computer System And Software Engineering
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 14 May 2015 02:24
Last Modified: 14 May 2015 02:24
URI: http://umpir.ump.edu.my/id/eprint/9119
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