Robust and energy efficient audio watermarking scheme resilient to desynchronizing attacks

Abstract

With the advances of technology, security of the digital media has become a major challenge. Audio watermarking is the technique to embed some data into the audio signal for identifying the copyright ownership and preventing piracy. This energy based technique is different from others as it involves embedding the pre-processed image watermark in wavelet domain using mean quantization and patchwork methods. The low frequency wavelet coefficients are considered and they are further segmented into frames on the basis of the size of processed watermark. The frames, thus obtained are arranged in decreasing order of their energy and watermark processed with the synchronization code is hid in frames with highest energy thereby increasing the robustness against deliberate and non- deliberate attacks. The simulation results show that the implemented scheme is highly resistant to the signal processing and desynchronization attacks. © 2011 Springer-Verlag.