Forensic audio watermark detection

Martin Steinebach; Sascha Zmudzinski; Dirk Petrautzki

doi:10.1117/12.907869

13 February 2012 Forensic audio watermark detection

Martin Steinebach, Sascha Zmudzinski, Dirk Petrautzki

Proceedings Volume 8303, Media Watermarking, Security, and Forensics 2012; 83030G (2012) https://doi.org/10.1117/12.907869
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

Digital audio watermarking detection is often computational complex and requires at least as much audio information as required to embed a complete watermark. In some applications, especially real-time monitoring, this is an important drawback. The reason for this is the usage of sync sequences at the beginning of the watermark, allowing a decision about the presence only if at least the sync has been found and retrieved. We propose an alternative method for detecting the presence of a watermark. Based on the knowledge of the secret key used for embedding, we create a mark for all potential marking stages and then use a sliding window to test a given audio file on the presence of statistical characteristics caused by embedding. In this way we can detect a watermark in less than 1 second of audio.

Citation Download Citation

Martin Steinebach, Sascha Zmudzinski, and Dirk Petrautzki "Forensic audio watermark detection", Proc. SPIE 8303, Media Watermarking, Security, and Forensics 2012, 83030G (13 February 2012); https://doi.org/10.1117/12.907869

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