A Vocoder of Multi-Pulse Excited Linear Prediction and Its Realization of Simulation
Baochen Jiang · Journal of Electrical & Electronic Engineering Education · 2005
This paper is a research experiment teaching case that the author develops in the course of speech processing.In this paper the author summarizes the coding ways for Multi-Pulse Excited Linear Prediction.In the vocoder realization way,the sender digitizes part correlation(PARCOR) coefficient rather than linear predictive coefficient of LPC filter.The receiver transforms PARCOR coefficient into linear predictive coefficient,and rebuilds system and synthesizes speech.In this way,the transfer bit rate is reduced and the qualities of synthesized speech is improved greatly.