Secure Speech Communication – A Review

Secure speech communication has been of great importance in civil, commercial and military communication systems. As speech communication becomes widely used and even more vulnerable, the importance of providing a high level of security becomes a major issue. The main objective of this paper is to increase the security, and to remove the redundancy for speech communication system under the global context of secure communication. So it deals with the integrating of speech coding, with speaker authentication and strong encryption. This paper also gives an overview and techniques available in speech coding, speaker Identification, Encryption and Decryption. The primary objective of this paper is to summarize some of the well known methods used in various stages for secure speech communication system.

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