一种自相关基音检测算法

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了语音信号实时处理的质量。目前有许多较好的检测算法提高了基音检测算法的效率。而自相关基音检测算法是一种时域算法,它能直接对时域信号采样值进行分帧、求短时自相关函数,并根据一定的判决准则进行清浊音判断。提供了一种自相关基音检测算法,经过实验,它在保持较好的性能的基础上提高了检测效率。

An Autocorrelation Algorithm for Pitch Detection

In speech signal processing, one of the key technologies is the pitch detection algorithm, and its efficiency directly affects the quality of speech's real-time processing. Up to now, there have been many good detection algorithms to improve the efficiency of the pitch detection algorithm. And the autocorrelation detection method is a time-domain algorithm, which can directly get frames and calculate short-time autocorrelation function according to time-domain signal samples. It can decide unvoiced or voiced frame according to the frame autocorrelation function. In this paper, the autocorrelation pitch detection method is presented, which is approved to improve the detective efficiency with good performance through experiments.