The Yin algorithm was developed by Alain de Cheveigné of IRCAM-CNRS and Hideki Kawahara of Wakayama University. It allows for real-time continuous (for each sample) fundamental frequency estimation. It features a very low error rate and few tuni

自相关方法提取语音一帧基音周期，很简单的-zi xiang guan ti qu ji yin zhou qi

pitch detector using yin algorithm

Pitch Detection Algo