中心消波自相关法语音基音检测  

A pitch period detection method base on center clip of autocorrelation function

作　　者：孙燕[1] 姜占才[2] 

机构地区：[1]青海民族大学计算机科学与技术系,青海西宁810007 [2]青海师范大学物理系,青海西宁810008

出　　处：《青海师范大学学报（自然科学版）》2009年第2期32-35,共4页Journal of Qinghai Normal University(Natural Science Edition)

摘　　要：采用非线性中心消波与自相关/AMDF相结合的算法提取语音基音周期,有效去除声道共振峰的影响和噪声的干扰,实现语音的基音检测;绘制了周期轨迹平台图,使周期/频率读取更加直观.MATLAB仿真实验结果表明,该方法有效、准确地提取了基音周期,并且对噪声有一定的鲁棒性.This paper proposes a pitch period detection method base on center clip of autocorrelation function/average magnitude difference function,this algorithm can effectively reduce interference of channel formant wave and noise and draw figure of pitch Platform,and easier read pitch.Experiment show that this algorithm has a better robustness and more precision compared with classical single-autocorrelation function/ average magnitude difference function.

关 键 词：中心消波 自相关 平均幅度差 基音检测 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]