Audio Watermarking

In this chapter, the authors recapitulate the background and the state-of-the-art of digital audio watermarking, including descriptions of audio watermarking algorithms and malicious attacks against these algorithms. The areas in which audio watermarking has been implemented and the possible future applications are outlined. The three requirements of the “magic triangle” in audio watermarking are described as well, with characterized by a number of defining properties, including robustness, watermark bit rate and perceptual transparency. The chapter also provides a comprehensive list of attacks used by adversaries to interfere with the embedded watermark and to prevent its detection.