自相关基频提取算法的MATLAB实现

Implementation of Pitch Detection Based on ACF by Matlab

在对自相关基音检测算法进行分析的基础上,对自相关基频提取算法进行了探讨.考虑到检测准确度和检测速率两方面的因素,结合带通滤波及三电平削波模块,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.

Many further studies have been done on the basis of analyzing the autocorrelation algorithm in this paper.A band-pass filter and a tri-level clipping module was adopted to improve the detection which took the accuracy and the detection rate into account.Based on Matlab and processing a specific voice,the estimation method was designed,more accurate voice pitch period of the voice sound has been obtained.The experiments showed that the method was simple and efective.