Title: A robust zero watermarking algorithm for stereo audio signals

Authors: Sunita V. Dhavale; Rajendra S. Deodhar; Debasish Pradhan; L.M. Patnaik

Addresses: Department of Computer Science and Engineering, Defence Institute of Advanced Technology, Girinagar, Pune-411025, India ' Armament Research and Development Establishment, Pashan, Pune-411021, India ' Department of Applied Mathematics, Defence Institute of Advanced Technology, Girinagar, Pune-411025, India ' Department of Electronics Systems Engineering, Indian Institute of Science, Bangalore-560012, India

Abstract: Zero-watermarking techniques constructs zero watermarks without modifying the original host audio signal. This paper presents a robust zero-watermarking algorithm for stereo audio signals. The proposed algorithm exploits inter-channel redundancy of stereo audio signal in order to construct zero watermarks binary sequence. Here, the features are extracted from DWTDCT-SVD domain to construct zero watermarks; and are found to be robust against modified discrete cosine transform (MDCT)-based perceptual stereo audio coding schemes. Extensive experimental results assure that the proposed watermarking scheme is highly secure as well as robust to common attacks like, MP3 compression, cropping, filtering, re-sampling, amplitude scaling and re-quantisation, etc. To the best of our knowledge, zero-watermarking algorithm based on stereo audio properties is proposed first time.

Keywords: digital audio watermarking; stereo audio signals; zero watermarking; discrete wavelet transform; DWT; singular value decomposition; SVD; blind detection; security.

DOI: 10.1504/IJICS.2016.080424

International Journal of Information and Computer Security, 2016 Vol.8 No.4, pp.330 - 346

Received: 28 May 2015
Accepted: 02 Feb 2016
Published online: 22 Nov 2016 *

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