Question
I have an audio signal (.wav) and would like to view its spectrum in matlab. Can anybody help me in this manner?
Expert Answer
John Michell
PhD Expert
Answered Aug 24, 2026
Read it in with wavread()
[signal,fs] = wavread('file.wav');
If signal is Nx2 (two columns), extract one of them
signal = signal(:,1);
If you have the Signal Processing Toolbox, enter
plot(psd(spectrum.periodogram,signal,'Fs',fs,'NFFT',length(signal)));
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