自己编的一个利用自相关法求解基音周期的程序-own addendum to the use of an auto-correlation method Pitch procedures

得到声音文件的数据和采样率，求自相关序列，基音周期分析函数，求最大值所对应的位置，即基音周期 -Receive voice data of a file and sample rate, and auto-correlation sequence, the function of pitch analysis, a position corresponding to the maximum demand, the pitch