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Robust Speech Watermarking Procedure in the Time-Frequency Domain

Abstract

An approach to speech watermarking based on the time-frequency signal analysis is proposed. As a time-frequency representation suitable for speech analysis, the S-method is used. The time-frequency characteristics of watermark are modeled by using speech components in the selected region. The modeling procedure is based on the concept of time-varying filtering. A detector form that includes cross-terms in the Wigner distribution is proposed. Theoretical considerations are illustrated by the examples. Efficiency of the proposed procedure has been tested for several signals and under various attacks.

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Correspondence to Irena Orović.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License ( https://creativecommons.org/licenses/by/2.0 ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Stanković, S., Orović, I. & Žarić, N. Robust Speech Watermarking Procedure in the Time-Frequency Domain. EURASIP J. Adv. Signal Process. 2008, 519206 (2008). https://doi.org/10.1155/2008/519206

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Keywords

  • Information Technology
  • Quantum Information
  • Signal Analysis
  • Theoretical Consideration
  • Modeling Procedure