Title: A novel approach to generate and extract audio watermark

Authors: Chundong Wang; Guangming Bo

Addresses: Tianjin Key Laboratory of Intelligence Computing and Novel Software Technology, Tianjin University of Technology, Tianjin, 300384, China ' Key Laboratory of Computer Vision and System (Ministry of Education), Tianjin University of Technology, Tianjin, 300384, China

Abstract: This paper proposes a combination of audio watermarking algorithm based on the wavelet transform and the Fourier transform. After the binary watermark image preprocessing, wavelet transform is taken for the audio, then the discrete Fourier transform is taken for the wavelet transform approximation component coefficients. Finally, the amplitude of the Fourier transform coefficients is quantised to embed the watermark. In the watermark extraction process, the original audio signal is not required. This paper describes the detailed process. Lastly, the simulation tests confirm the robustness and transparency.

Keywords: wavelet transform; audio watermarking; robustness; transparency; audio watermark generation; audio watermark extraction; Fourier transform; simulation; security.

DOI: 10.1504/IJHPSA.2014.059869

International Journal of High Performance Systems Architecture, 2014 Vol.5 No.1, pp.33 - 38

Received: 05 Aug 2013
Accepted: 25 Sep 2013
Published online: 12 Jul 2014 *

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