How to make a spectrogram

Hello, I am a MATLAB beginner and would like to make a spectrogram from a sound file but don’t know where to start. Is someone able to give me instructions, beginning with where on my computer my sound file should be saved so that MATLAB can access it?

Thank you :-)

[Adam]

If you have the signal processing toolbox then

doc spectrogram

will give you a spectrogram once you have loaded in your data.

[Brittany Williams]

Great! Thank you :-)

Answer 1

[KALYAN ACHARJYA]

[signal,fs]=wavread('audio_file.wav');

find the psd of the psd_signal, see documentation

plot(psd_signal); 

[Brittany Williams]

thank you, this is a great help!