Spread Spectrum Audio Watermarking Using Vector Space Projections

Adamu I., Abu Bakar and Akram, M. Zeki and Haruna, Chiroma and Sanah, Abdullahi Muaz and Eka, Novita Sari and Tutut, Herawan (2015) Spread Spectrum Audio Watermarking Using Vector Space Projections. Advances in Intelligent Systems and Computing, 320. pp. 297-307. (Published)

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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: Article
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: 12 Jan 2016 03:22
Last Modified: 12 Jan 2016 03:22
URI: http://umpir.ump.edu.my/id/eprint/8244
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