I appreciate your feedback very much - as work on cough analysis continues, all following interesting visuals will come addressing your points!

Agree with labels, that would look more professional, in this case - thought of sharing it as a piece of art. By the way - thanks so much for giving an elaborate reply on the differences in colours - very much appreciate that!

To tell you the truth - coughs are super colourful! Usually people are not used to pay attention to cough in general, and this is about to change big time! And in regards to the visual - another example in different colours here: https://ibb.co/7VXJm79

Thanks for this great question - complex-valued Mexican hat mother wavelet here, used this implementation of synchrosqueezing: https://github.com/OverLordGoldDragon/ssqueezepy

Thanks for sharing, will take a look!

This is so cool! There was another user mentioning the same effect!

Impressive effect, I agree! Better be aware of those coughs and their dynamics irl before it gets worse!

Interesting - do you have some image to share which resembles cough's scalogram, just out of curiosity?

Good one haha! For a cough, that is lonely and rich - it is likely just a matter of time for another one to appear; then they are counted and depicted as cough bursts!

[OC] audio collected through a smartphone cough monitoring application. Audio to visual scalogram generated in R (wavelet transform), decomposing the signal into frequencies. Purple background allows to see where the explosive peak of a cough sound happens, with the vocal phase of a cough following as trailing bright spots.