基于Matlab的语音信号自相关基音检测

自相关基音检测算法是语音信号处理的关键技术,算法的效率直接影响语音信号实时处理的质量。在对自相关基音检测算法基本原理进行分析的基础上,设计了 Matlab 算法实现方案,通过对一段具体语音时域信号采样值进行滤波、分帧、求短时自相关函数,得到了浊音语音的基音周期。试验结果表明,该算法结构简单,运算量小,效率高。

Autocorrelation Algorithm for Speech Pitch Detection Based on Matlab

The autocorrelation pitch detection algorithm is the key technique for speech signal process- ing,and its efficiency directly affects the quality of real-time speech processing. The implementation of the program with Matlab is designed on the basic principle of the autocorrelation pitch detection algo- rithm, the program can directly filter, get frames and calculate a short-time autocorrelation function of a time-domain speech signal to obtain the pitch period. The result of experiment shows that this algo- rithm structure is simple, the operand is small, the efficiency is high.