Informed audio watermarking in the wavelet domain

Audio watermarking aims at ensuring the property rights for digital audio (music, speech). In this respect, some extra information, referred to as mark or watermark, is embedded into original - unmarked - clip. By detecting this information, the true owner should be identified and the copy maker should be tracked down. This paper starts by identifying the audio peculiarities under the watermarking framework. Then, the first method hybridising spread spectrum and side information principles for audio watermarking is advanced. This method meets the nowadays challenging requirements of transparency, robustness, and data payload. The experiments were performed in collaboration with the French SFR (Vodafone Group) mobile service provider.