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Simultaneous Enhancement and Watermarking of Speech Signals

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Abstract

The paper presents an improvement of the watermark extraction in speech signal watermarking. The noise added to the speech signal during transmission affects the efficiency of the watermark extraction. Removing this noise may aid to enhance the extraction process. There are methods of the speech signal enhancement, which aims to reduce the noise distortion in the speech signal. In this paper, the watermark process is done using the hybrid strategy of the Empirical Mode Decomposition (EMD) and the block-based Singular Value Decomposition (block-based SVD) with chaotic encrypted watermark. The watermark is embedded into the Singular Values matrix (SVs) because of its stability against any disturbance in the speech signal due to the different attacks. The encrypted watermark increases the security level of the watermark. When the watermark extracted at the receiver side, the speech signal will be enhanced first using spectral subtraction, Wiener filter or adaptive Wiener filter enhancement methods. The paper introduces a comparison study to evaluate the performance of each of them. Simulation results indicate that using the enhancement step improve the watermark extraction, especially using the adaptive Wiener filter.

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Authors and Affiliations

  1. Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt

    Eman abd-ElMordy, Safaa el-Gazar, Alaa M. Abbas, Sami El-Dolil, Ibrahim M. El-Dokany, Moawad I. Dessouky, El-Sayed M. El-Rabaie, Adel S. El-Fishawy & Fathi E. Abd El-Samie

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  1. Eman abd-ElMordy
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  2. Safaa el-Gazar
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  3. Alaa M. Abbas
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  4. Sami El-Dolil
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  5. Ibrahim M. El-Dokany
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  6. Moawad I. Dessouky
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  7. El-Sayed M. El-Rabaie
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  8. Adel S. El-Fishawy
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  9. Fathi E. Abd El-Samie
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Correspondence to Safaa el-Gazar.

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abd-ElMordy, E., el-Gazar, S., Abbas, A.M. et al. Simultaneous Enhancement and Watermarking of Speech Signals. Int J Speech Technol 24, 219–234 (2021). https://doi.org/10.1007/s10772-019-09638-1

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  • DOI: https://doi.org/10.1007/s10772-019-09638-1

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