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Analog Speech Encryption Based On Biorthogonal Transforms | ||
| Journal of University of Babylon | ||
| Article 1, Volume 21, Issue 8, 2013, Pages 2621-2628 | ||
| Author | ||
| Lamis Hamood Mohaissn Al-Saadi | ||
| Abstract | ||
| This paper presents speech security method which enables variety of encryption operations in the combined time and frequency spaces. The analog speech encryption operations is performed by an important Biorthogonal transformation technique in order to give the communication systems that based on using a speech signal high degree of the security. The noisy communication channel usually accompanying the encryption processes is studied. Different case studies were taken into consideration, through using different types of Biorthogonal transforms. The performance of the proposed scheme is examined through the calculation of evaluation measure (the segmental signal to noise ratio). The results are promising for analog speech encryption systems. | ||
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