Theoretical and practical implementation of scrambling algorithms for speech signals

Enache, Florin; Deparateanu, Daniel; Oroian, T.; Popescu, Florin; Vizitiu, Iulian C.

doi:10.1109/ecai.2015.7301160

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The first step is to digitize the incoming signal, process it by an algorithm, convert it, and transmit it to the receiver. After that, the signal is digitized once more, inverted, and finally converted back into an analog signal so that it can be reconstructed [15]. While in digital encryption the input speech signal is digitized.…”

Section: The Comprehensive Theoretical Basis 21 Speech Scramblingmentioning

confidence: 99%

Speech scrambling based on multiwavelet and Arnold transformations

Hasan

Hadi

Al-Jawher³

2023

IJEECS

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For communication applications where secure speech signal transmissions are a key requirement, speech scrambler is taken into consideration. To prevent someone from listening in on private conversations without their knowledge, it can transform clear speech into a signal that is unintelligible. The proposed speech scrambling system involves using two types of frequency transformation techniques: multiwavelet transform and Arnold transform. The effectiveness of the scrambling algorithm was evaluated with the help of three different measurements: the peak signal to noise ratio (PSNR), the estimated time (ET), and the mean square error (MSE). According to the final findings, the outcome of the scrambled speech signal does not have any residual intelligibility, while the quality of the descrambled speech is extremely satisfactory and has a low MSE level.

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Section: The Comprehensive Theoretical Basis 21 Speech Scramblingmentioning

confidence: 99%

Speech scrambling based on multiwavelet and Arnold transformations

Hasan

Hadi

Al-Jawher³

2023

IJEECS

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“…Speech scrambling techniques are some of the methods used to prevent informatics attacks and to protect the information from intruders or interceptors. This can ensure the security of voice transmission [6].…”

Section: Introductionmentioning

confidence: 99%

FPGA-Based Voice Encryption Equipment under the Analog Voice Communication Channel

Sun

Zheng

et al. 2021

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This paper describes a voice encryption device that can be widely used in civil voice call encryption. This article uses a composite encryption method to divide the speech into frames, rearrange them in the time domain, and encrypt the content of the frames. The experimental results show that the device can complete the encryption normally under various analog voice call conditions, and the voice delay, quality, encryption effect, etc. are guaranteed. Compared with traditional time-domain encryption, it effectively solves the original voice information remaining in the encrypted information, and further increases the security of the voice.

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