Hi everyone

I want to create a patch in PD Extended to analyze the tone of any song in real time. I try with some forms but i don't know how to make it. Can you help me please?

Hi, "tone analyzer" is vague, what do you mean?

And by the way, Pd extended has been dead and abandoned for over a decade, so no one should still use it this day and age.

@Josefo18 There was a discussion long ago..... https://forum.pdpatchrepo.info/topic/6003/rap-realtime-analysis-project where [sigmund~] and [bonk~] were mentioned.
@katjav investigated SNAC on her site...... https://www.katjaas.nl/helmholtz/helmholtz.html
... and at the bottom of that page she posted [helmholz~] which might be what you are looking for.
David.