How to divide spectrogram in bands according to y-axis?

y=audioread('speech.wav');

subplot(2,3,1);

plot(y);

spectrogram(y,[],[],[],fs,'yaxis');

This code will help me to plot the spectrogram. I want to divide spectrogram into different bands according to frequency which is taken on y-axis. How I can do it?

Answer 1

[vidyesh]

Hi Jaya,

The 'histogram' function should allow you to divide the spectrogram as desired.

h = histogram(y);
disp(h.Values);

A detailed explanation of the 'histogram' function and the properties of the object 'h' returned by the function is present in the below documentation pages

1) histogram function - https://www.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.histogram.html#buhzm_z-1-nbins

2) histogram properties - https://www.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.histogram-properties.html

Hope this helps.