dsp

[EDIT: 20110921 16:05 CDT - merge duplicate - WDR]

how to calculate pitch period values for a speech signal

[Information from duplicate]

in a signal we are getting 4 peak values by sorting that signal values .i am in need of finding the pitch period values in between the 4 peak values

Answer 1

[Wayne King]

One way is to look at the period of the autocorrelation sequence with xcorr().

You may want to lowpass filter the speech signal first though if by "pitch" you are referring to the fundamental frequency of the speaker.