SIMULATION STUDY OF MEDIUM RATE SPEECH CODING USING PREDICTIVE VECTOR QUANTIZATION

Abstract

As digital communication is becoming increasingly important, the theory and practice of data compression is receiving increasing attention. Data compression is the conversion of a stream of analog or high rate discrete data into a,.,stream of relatively low rate data for communi-cation over a digital communication link or storage in a digital memory. While it is true that in many systems, bandwidth is relatively inexpensive, e.g., fibre optic and cable T.V. links, in most systems the growing amount of information that users wish to communicate or store necessitates some form of compression for efficient, secure and reliable use of the communication,-or-storage medium