Matlab spectrogram tutorial

How to use Matlab create basic spectrograms for signals with time varying frequency content, including an example comparing signals with constant tones and alternating tones.

[gevindupramodediriweera]

well-explained. the examples used are really practicle and add clarity to the explanation. thanks. keep up the good work!

[AtliTobiasson]

Thanks mate. One question, Can I have the diagram only show me the frequencies that are relevant to me and in higher resolution?

[papadakisandreas]

Thanks for mini tutorial. Do you know if I can return back from spectrogram to wav?

[danieller.]

When you plot the spectrograms, your x-axis is not starting from zero. I observe this when I plot spectrograms as well, with the beginning and ending of my signal getting cut off. Do you know why this occurs?

[amruthgadag]

Sir,
I have created a spectrogram for a 5-sec wave. The 2-D spectrogram has:
x-axis: 0 to 5 secs
y-axis: 1 to 100 Hz.

Now I need to assign a whole 15Hz signal from 0 to 5 seconds vector from the spectrogram to a variable. Please help me.

[borandolph]

What was the code used to plot the spectrogram data?

[aakashdewangan]

should have zoom in the screen, when u r explaining the code.