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- Title
A joint encryption-compression codec for speech signals using the ITU-T G.711 standard and chaotic map.
- Authors
Hermassi, Houcemeddine; Hamdi, Mimoun; Rhouma, Rhouma; Belghith, Safya
- Abstract
We propose to incorporate encryption procedure into the lossy compression of voice data PCM(Pulse Code Modulation) based on the A-law approximation quantization. The proposed codec CPCM (Chaotic Pulse Code Modulaion) will join the encryption to the compression of the voice data. This scheme provides the same compression ratio given by the PCM codec, but with an unintelligible content. Comparisons with many used schemes have been made to highlight the proposed method in terms of security and rapidity. CPCM codec can be a better alternative to Compress-then-encrypt classical methods which is a time and resource consuming and non suitable for real-time multimedia secure transmission.
- Subjects
PHONOTACTICS; LANGUAGE &; languages; SPEECH processing systems; ACOUSTIC signal processing; SPEECH disorders
- Publication
Multimedia Tools & Applications, 2017, Vol 76, Issue 1, p1177
- ISSN
1380-7501
- Publication type
Article
- DOI
10.1007/s11042-015-3030-6