How can i determine the dominant frequency and maximum amplitude of a signal from its line spectral plot

    Hello! all the matlab families

      I fail to do my project on real time sound signal captured through microphone

      data length 131072, sampling frequency 44100Hz, mono and double data type

       I need to plot the data in time and frequency domain respectively and I should write a code 

      that displays amplitude(max) and frequency(dominant)

        plz help me!

Answer 1

[Pratik Bajaria]

Go through the MATLAB help given on the following link. I hope it will clear all your doubts.

http://www.mathworks.in/help/matlab/ref/fft.html

Let me know in case of further queries.

Regards, Pratik

[Patrik Ek]

This does then assume that fft is good enough of course, there is also some functions doing AR and ARMA estimations. For example http://www.mathworks.se/help/ident/ref/ar.html