该文在研究基于线性预测倒谱和非线性MEL刻度倒谱特征的基础上，研究了LPCC和MFCC参数提取的算法原理及提取算法，提出了一级、二级差分倒谱特征参数的提取算法。识别实验验证了MFCC参数的鲁棒性优于LPCC参数。-In this paper, research is based on linear prediction and nonlinear MEL Cepstrum Cepstrum scale, based on studies of LPCC and MFCC parameter extraction algorithm for principle and extraction algorithm is proposed a secondary characteristic parameters of differential cepstrum extraction algorithm. Recognition experiment results verify the robustness of MFCC parameters is superior to LPCC parameters.