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Proceedings Paper

Forensic audio watermark detection
Author(s): Martin Steinebach; Sascha Zmudzinski; Dirk Petrautzki
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Paper 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.

Paper Details

Date Published: 13 February 2012
PDF: 10 pages
Proc. SPIE 8303, Media Watermarking, Security, and Forensics 2012, 83030G (13 February 2012); doi: 10.1117/12.907869
Show Author Affiliations
Martin Steinebach, Fraunhofer Institute for Secure Information Technology (Germany)
Sascha Zmudzinski, Fraunhofer Institute for Secure Information Technology (Germany)
Dirk Petrautzki, Fraunhofer Institute for Secure Information Technology (Germany)


Published in SPIE Proceedings Vol. 8303:
Media Watermarking, Security, and Forensics 2012
Nasir D. Memon; Adnan M. Alattar; Edward J. Delp, Editor(s)

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