Mitchel Jay asked . 2024-03-21

How do I get the max value within a specified range on my plot?

    %Tuning for G String
            gG = 196.00;

            %Fourier Transform of G3 On Guitar
            [y,Fs] = audioread('3rd_String_G_vbr.mp3');

            Nsamps = length(y);
            t = (1/Fs)*(1:Nsamps);  %Prepare time data for plot

            %Do Fourier Transform
            y_fft = abs(fft(y));    %Retain Magnitude
            y_fft = y_fft(1:Nsamps/2);  %Discard Half of Points
            f = Fs*(0:Nsamps/2-1)/Nsamps;   %Prepare freq data for plot

            %Find max y value of the highest peak in the range, then find corresponding x
            %value
            [maxYValue, indexAtMaxY] = max(y_fft);
            xValueAtMaxYValue = f(indexAtMaxY(1));

Signal Processing , Audio Toolbox , Audio Processing Algorithm Design , max value , peak