Text hiding in high frequency components of speech spectrum

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Institute of Electrical and Electronics Engineers Inc.
Boosted by recent advances in the information technology field, methods applied to ensure privacy of digital data became very important in many real life applications. Efficient secrecy can be achieved at least in part, by implementing steganograhy techniques. In this paper, we propose a new technique to hide text in wideband speech in noise free environment. We opted to work in the Fourier transform domain and hide the digital information within high frequency components. More precisely, our method exploits selected locations from the high-frequencies part of the cover speech to hide the secret text. We better preserve with high fidelity the spectrum shape of the speech carrier by employing an embedding rather than a replacement operation on the secret text. Our simulation results show that this approach maintains the robustness of the cover signal and achieves a higher hiding capacity. © 2010 IEEE.
This conference paper is not available at CUD collection. The version of scholarly record of this conference paper is published in 10th International Conference on Information Science, Signal Processing and their Applications (ISSPA 2010) (2010), available online at: https://doi.org/10.1109/ISSPA.2010.5605584
Digital datas, Digital information, FFT based steganography, Hiding capacity, High fidelity, High frequency, High frequency components, Noise-free environments, Real-life applications, Simulation result, Spectrum shape, Speech spectra, Text in speech hiding
Djebbar, F., Guerchi, D., Abed-Meraim, K., & Hamam, H. (2010). Text hiding in high frequency components of speech spectrum. In 10th International Conference on Information Sciences, Signal Processing and their Applications, ISSPA 2010 (pp. 666–669). https://doi.org/10.1109/ISSPA.2010.5605584