I think I achieved replicating this in puredata ,I'm also pretty sure this can be done way more efficiently...!

Here's a screenshot & the patch attached.

genDetrendTest.pd

@whale-av Cheers !

I never knew this topic would go that deep...
I'll try and improve my onset detection / detrending, then see if I need the counter to be that accurate ( my guess is "no" )

@lacuna

Well, I think the counter being off isn't an issue, in the end it's off for the 4 mics and I end up with correct inter-onset values. ( I hope so )

The patch evolved and has fewer uncertainties ( the screenshot I posted in the previous thread was wrong in many ways... )

I gave up using Lowpass to filter onsets, I went on trying to reproduce some "Gen~" code with "fexpr~" ( as I understood a few things about expressions reading all the different answers I got on the forum.

I got better results ( I've been provided a 4 tracks recording, and a list off all inter onsets produced by the max patch so I can compare ) I spent a few hours trying to have the exact behaviour of :

in a fexpr object.

Question, does anyone think this Gen~ code can be transposed to fexpr~ ?

@ddw_music ,

Maybe ok for one second

I count only 256 samples, I assume it will be precise then ?

@ddw_music , even better, I guess this would be more cpu friendly ?

@jameslo

I try to be precise when asking for things, but when I post I've been struggling for a long time, smoke is coming out of my ears, I end up with confusing messages....

Thanks a lot, again!

I just had to invert things:

fexpr~ if($x != 0, ($y + 1) % 44100, 0)

beautiful.

Another adaptation I'm struggling with:

Here "phasor~"'s phase is reset when receiving a non zero signal.
The use case is resetting a sample counter.

Phasor~in puredata doesn't act the same,
Does anyone have a clue how to make a vanilla adaptation ?

Cheers

@ben.wes

EDIT2: and if it's about counting samples from the first hit to the others and then triangulating - that should also be achievable. let me know whether i understand correctly first. :)

Hi, I missed your post, but this is the idea. get the right number of samples from first hit to the others.
( The triangulation part is already sorted )

I should maybe start a fresh topic about this, as my original question was answered.

@lacuna Actually I could even attach the patcher, it would make it easier right ?