An audio watermarking scheme robust to MPEG audio compression

In recent years, digital watermarking has been introduced as a means of effectively protecting copyrights on the digitized media such as image, audio and multimedia data. In this paper, we present a technique for embedding digital “watermarks” into digital audio signals. The watermark must be imperceptible and should be robust to attacks and other types of distortions. In our method, the watermark is generated by the random sequence with a seed and is embedded into the subband coefficients directly for the robustness of MPEG audio compression. The seed is a watermark key known only the copyright owner.