MATLAB: How to convert pitch period to frequency in Hert for a signal

pitch

how to convert pitch period to frequency in Hertz???

Paul, typically f = 1/T (unless you are using a non-standard vocabulary), where T is the period in sec, f is the frequency in Hz.

Hint:

Use linspace () to create t. Then

y = amplitude * sin(2 * pi * freq * t)

Come back with your code if you still have trouble.

There are many methods to do, the autocorrelation approach is easy and quite effective. You can calcute your signal's autocorrelation with

c=xcorr(y,y);

In your autocorrelation function it is easier to estimate the pitch.