Tonal and noise components

Does anyone know how to get tonal and noise components of the signal based on euklidean distance ?

Do you get it from spectral coeficient or SPL spectrum ?

Is it better to use mono or stereo signal or it doesnt metter ?

[Image Analyst]

I'm not sure of the official definitions of those. Can you just say that any frequency above a certain frequency is noise and anything lower than that is "tonal"? If not, what is your definition?

[Mathieu NOE]

hello

do you have a sample audio file to share ?

tx