pitch detection algorithm

yin， 一种经典的基音周期检测算法，可用于语音、音乐等。-yin, a classic pitch detection algorithm.

基于短时能量的基音短点检测，有基于短时能量的计算方法、短时过零率，有matlab程序，同事对应word讲解，算法原理图，和算法详细介绍。-Short pitch detection based on short-term energy, based on the calculation method of the short-time energy, short-time zero-crossing rate, matlab program, colleagues corresponding w