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Using spectralFlux to plot Flux of a vector

Asked by Sarah Aimen on 15 Oct 2019
Latest activity Edited by Sarah Aimen on 17 Oct 2019
Hi,
I have a waveform in time domain, but it is digitized, so It is basically a vector (yy). How can I plot Flux for it? When I write
flux = spectralFlux(yy,fs);
Error: Undefined function 'spectralFlux' for input arguments of type 'double'.
Seems MATLAB doesn't recognize spectralFlux. I'd appreciate your help at this matter.
Thanks

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2 Answers

Answer by jibrahim on 17 Oct 2019
 Accepted Answer

Sarah,
Which MATLAB release are you working from? This function was introduced to audio Toolbox in R2019a.

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Yes, It was the problem, I installed new MATLAB, now it works! Thanks though,

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Answer by Bjorn Gustavsson on 15 Oct 2019

It is not at all clear what you want to do, spectral flux is not a term I've heard before - this might be because I'm ignorant, or because you've translated from another language and the exact English term is something else. I'll take a swing anyways...
You might be interested in the spectrogram function. Have a look at the help and documentation for that function.
If I'm way off, you might get better help if you describe what spectral flux is in more detail.
HTH

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Thanks for your response, and sorry for the confusion.
I'm following this link
I want to use it for my own signal, X(t).
How should I do that?
Thanks

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