Way to calculate vibration

Asked Aug 16 '22 at 02:32

Active Aug 17 '22 at 02:56

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I am reading a paper about synthesis. One of the parts is talking about calculating vibrato, and I want to follow their way to do the same thing. However, I am new to signal processing and am not sure whether the method I found is correct or not.

This is the part of the paper MIDIDDSP-paper

First, f0 means fundamental frequency, which I already calculated.

But then I am not sure the way to calculate the f0(t).

I've found a method called librosa.stft, computing discrete Fourier transforms (DFT) over short overlapping windows. The code is something like

y, sr = librosa.load(librosa.ex('trumpet'))
S = np.abs(librosa.stft(y))

Yet, I don't know what's the next step and whether the method is right.

Hope someone could tell me the way to calculate vibrato, I appreciate it!!!!

edited Aug 17 '22 at 02:56

asked Aug 16 '22 at 02:32

Megan

Can you link to the paper in question? – Jon Nordby Aug 16 '22 at 18:01
How do you compute f0? The FFT/DTFT has to be applied on the f0 estimate, not on the original audio – Jon Nordby Aug 16 '22 at 18:32
Okay, I added the paper link. Actually, the code of computing f0 was provided by my professor. But it seems that he didn't put FFT method inside the f0 function, so i've done the fft function after calculating f0 – Megan Aug 17 '22 at 05:24
@JonNordby Hi, could you help me, thanks – Megan Aug 20 '22 at 12:28

Way to calculate vibration

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