The multi-bit watermarking method for speech signals in the time-frequency domain

Authors:
Mahmood Al-khassaweneh;Hussien Al-zoubi;Selin Aviyente
Affiliations:
(Correspd. E-mail: khassaweneh@yu.edu.jo) Computer Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan;Computer Engineering Department, Hijjawi Faculty for Engineering Technology, Yarmouk University, Irbid, Jordan;Department of Electrical and Computer Engineering, Michigan State University, East Lansing, MI, USA
Venue:
Integrated Computer-Aided Engineering
Year:
2010

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Abstract

In this paper, we introduce a new multi-bit watermarking method for speech signals in the joint time-frequency domain. For this purpose, we compute the Wigner distribution of the speech signal and embed the watermark in a subset of time-frequency cells. The problem of synthesizing the signal from the watermarked Wigner distribution is discussed and a simple algorithm to reconstruct the speech signal from its Wigner distribution is proposed. The performance of the proposed watermarking algorithm is illustrated for sample attacks.