Open Access

Robust Speech Watermarking Procedure in the Time-Frequency Domain

EURASIP Journal on Advances in Signal Processing20082008:519206

https://doi.org/10.1155/2008/519206

Received: 18 January 2008

Accepted: 16 April 2008

Published: 5 May 2008

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.

Publisher note

To access the full article, please see PDF.

Authors’ Affiliations

(1)
Electrical Engineering Department, University of Montenegro

Copyright

© Srdjan Stanković et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.