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Fatiha Djebbar, Beghdad Ayad, Karim Abed-Meraim and Habib Hamam Unified phase and magnitude speech spectra data hiding algorithm Security and Communication Networks 6

Version of Record online: 11 JAN 2013 | DOI: 10.1002/sec.644

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This paper presents a steganographic algorithm that securely hides large amount of data using both magnitude and phase speech spectra of a signal. The algorithm selects only high energetic frequency components and exploits the properties of a simple frequency masking to ensure the inaudibility and the security of embedded data. On the basis of the objective results and the steganalysis study, hiding in phase spectrum is preferable because it achieves higher hiding capacity while ensuring a better stego-speech quality and low detection rate of the embedded data.

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