MATLAB Answers


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
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.


Sign in to comment.

2 Answers

Answer by jibrahim on 17 Oct 2019
 Accepted Answer

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

  1 Comment

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

Sign in to comment.

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.

  1 Comment

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?

Sign in to comment.