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Ⅰ、引言线性预测编码(LPC)是使用于数字化传输语言几个可利用方法中的一种。在这个方法中,试图估针语言发生模型的一组最佳化参数。然后传送这个语言模型的数字化参数,在接收端用来合成语言。所有线性预测编码法均以下述假设为基础;对于给定的被取样语言波形,最大多数语言样值能够用过去样值的线性加权组合来精确地预测。用来预测现在样的过去样的
I. INTRODUCTION Linear Predictive Coding (LPC) is one of several methods available for use in digitized transmission languages. In this method, a set of optimization parameters are tried to estimate the speech generation model. The digitized parameters of the language model are then transmitted and used at the receiving end to synthesize the language. All linear predictive coding methods are based on the assumption that for a given sampled speech waveform, the largest majority of the speech samples can be accurately predicted using a linear weighted combination of past samples. Used to predict the present kind of past