Robust Speech Watermarking Procedure in the Time-Frequency Domain. (5th May 2008)

• Record Type: Journal Article
• Authors: Stanković Stanković, Srdjan Srdjan; Orović Orović, Irena Irena; Žarić Žarić, Nikola Nikola
• Other Names: Menegaz Menegaz Gloria Gloria Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2008(2008)
• Publication Date: 2008-05-05
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2008/519206
• Languages: English
• ISSNs: 1687-6172

Abstract

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.