spectrogram function: phase and magnitude
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Hi,
I read the Spectrogram function and I sort of understand it, but I have a question. As stated in the definition, the Spectrogram returns the Short-time Fourier Transform of the input signal. When I take a STFT, I must get two components: magnitude and phase. I assume that the magnitude vector is what we get from the Spectrogram, but what about the phase? Please help!!!!
Thanks
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Rick Rosson
2014 年 11 月 21 日
The spectrogram function returns complex numbers, which include both magnitude and phase information.
[S,F,T] = spectrogram(...);
A = abs(S);
phi = angle(S);
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