A Robust Audio Watermarking Scheme in the Wavelet Domain Against Desynchronization Attacks

International Journal of Computer Science and Technology | Vol. 12, No. 4, April 2010 | pp. 25–32

DOI: 10.46882/2010/IJCST/000025

Article Type: Research Article

Title: A Robust Audio Watermarking Scheme in the Wavelet Domain Against Desynchronization Attacks

Names of Authors: Prof. Hans J. Muller¹, Lin Nguyen²

Authors’ Affiliations: ¹Institute of Computer Science, University of Zurich, Zurich, Switzerland; ²Department of Information Technology, Vietnam National University, Hanoi, Vietnam

Abstract: Digital audio piracy requires effective copyright protection techniques capable of surviving lossy acoustic operations and systemic desynchronization. This study presents a robust audio watermarking model utilizing the Discrete Wavelet Transform (DWT) combined with Singular Value Decomposition (SVD). The watermark bits are embedded dynamically into the singular values of low-frequency DWT coefficients to establish strong structural masking against perception filters. Testing was conducted across 200 audio clips containing classical music, speech recordings, and electronic tracks. The experimental calculations show that the watermark extraction framework handles standard MP3 compression down to 64 kbps while maintaining an average bit error rate (BER) below 1.2%. Under severe desynchronization attacks, including jitter adjustments and pitch shifts of ±5%, the recovery accuracy remained above 94.6%. The results confirm that utilizing invariant singular value frameworks within frequency transforms provides industrial-grade security tracking without introducing discernible acoustic distortions into source streams.

Keywords: Audio Watermarking, Discrete Wavelet Transform, Singular Value Decomposition, Copyright Protection, Desynchronization Attacks, Robustness

Manuscript Timeline: Received: September 2, 2009; Revised: November 10, 2009; Accepted: December 14, 2009; Published: April 11, 2010

Citation: Muller, H. J., & Nguyen, L. (2010). A Robust Audio Watermarking Scheme in the Wavelet Domain Against Desynchronization Attacks. International Journal of Computer Science and Technology, 12(4), 25–32.

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