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A joint encryption-compression codec for speech signals using the ITU-T G.711 standard and chaotic map
- Source :
- Multimedia Tools and Applications. 76:1177-1200
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
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 :
- Source code
Computer Networks and Communications
Computer science
Speech recognition
media_common.quotation_subject
Data_CODINGANDINFORMATIONTHEORY
02 engineering and technology
Lossy compression
Encryption
0202 electrical engineering, electronic engineering, information engineering
Media Technology
Codec
Secure transmission
media_common
business.industry
Quantization (signal processing)
020206 networking & telecommunications
020207 software engineering
Enhanced Variable Rate Codec
computer.file_format
Computer engineering
Adaptive Multi-Rate audio codec
Hardware and Architecture
Pulse-code modulation
business
computer
Software
Subjects
Details
- ISSN :
- 15737721 and 13807501
- Volume :
- 76
- Database :
- OpenAIRE
- Journal :
- Multimedia Tools and Applications
- Accession number :
- edsair.doi...........e853d37291412933e0d0b6ae62c784d4