A dual audio watermarking system based on Spread Spectrum and QIM technique

In this paper, we present a dual audio watermarking system that ensures the double constraints robustness and high embedding capacity. The proposed technique tens to incorporate two different watermarks in a digital audio signal with a view to reinforce of the copyright protection and embed an important amount of information. To meet this end, we show how Spread Spectrum and Quantization-Based Watermarking techniques can be combined together. Then we evaluate the performances of this novel technique in terms of inaudibility, bit rate, and robustness.