Speech Compression Using Linear Predictive Coding

The aim of the project is to develop a system for encoding good quality speech at a low bit rate. To implement this we have used most powerful speech analysis technique called Linear Predictive Coding (LPC). It uses 10 order Levinson-Durbin Recursion algorithm to accomplish the task. It provides extremely accurate estimates of speech parameters, and is relatively efficient for computation.The speech signal of males and females were coded. The tradeoffs between the bit rate, end-to-end delay, speech quality and complexity were analyzed. The results show that project was successful in coding the speech signal at relatively low bit rates with good quality.