An Improved Audio Watermarking Scheme Based on Complex Spectral Phase Evolution Spectrum

In this paper, a new audio watermarking algorithm based on the Complex Spectral Phase Evolution algorithm is presented. This is an extension of a previous scheme. Peaks in a spectral representation derived from the Complex Spectral Phase Evolution are utilized for watermarking, instead of the frequency identification technique which was previously proposed. Although this new scheme uses a process which is less complex, it nevertheless achieves a high degree of robustness, particularly against common attacks, which is one distinct advantage over our previous scheme. Similarly, perceptual transparency and accuracy are both very good.