Localized robust audio watermarking in regions of interest

In this paper, a novel localized robust audio watermarking scheme is proposed. The basic idea is to embed watermark in selected high energy regions, that is, in regions of interest (ROI). By virtue of localization and ROI, the embedded watermark is expected to escape the damages caused by audio signal processing, random cropping and time scale modification etc, because these high energy local regions usually correspond to music edge like note attack, transition or percussion instruments like drum, which represent the music rhythm or tempo and are very important to human auditory perception. Taking advantage of localization and ROI, together with global redundancy, this method shows strong robustness against common audio signal processing, time domain synchronization attacks, and most distortions introduced in Stirmark for audio.