基于Matlab的一种基音周期检测算法  

An algorithm for pitch detection based on Matlab

作　　者：宋建华[1] 朱勇[1] 徐军[1] 张圣贤[1] 

机构地区：[1]黑龙江大学电子工程学院,哈尔滨150080

出　　处：《信息技术》2009年第1期50-54,共5页Information Technology

摘　　要：在对自相关基音检测算法进行分析的基础上,对此算法进行了深入探讨,针对以往研究中存在的不足加以改进,考虑到检测准确度和检测速率两方面的因素,引入了三电平削波模块,设计了基于Matlab的估计方法,然后通过对一段具体的语音进行处理,得到了比较准确的浊音语音的基音周期。实验证明,该方法简单、有效。In this paper, some further studies have been done on the basis of analyzing the autocorrelation algorithm. For the shortcomings of the research in the past, a tri-level clipping module is adopted to improve the detection which takes the accuracy and the detection rate into account. This paper designed the estimation method based on Matlab, and then through processing a specific voice, obtained more accurate voice pitch period of the voiced sound. The experiments show that the method is simple and effective.

关 键 词：MATLAB 基音检测 自相关函数 三电平削波 

分 类 号：TN912[电子电信—通信与信息系统]