Hi there

I'm looking for a way for Pd to recognize recurring graphical data patterns within arrays, does anyone know of anything out there for this? Would my best bet be trying to make a patch for this myself?

Thanks

J

Am I correct in thinking autocorrelation is a n! function?

Not that bad. O(n^2) I think.

And there's "fast autocorrelation" that can do O(n log n). Don't know how those work.

Nice one guys! Thanks for all this!

"From Jareds OP I think it's more of a classification thing - does a pattern occur more than once?"

Yes, I had in mind initially the classification of recurring patterns. The info on cross correlation/autocorrelation seems as though it will be very helpful, and nice pointer on the use of 'fuzzy logic' as opposed to precise sample comparison!

sunji: "this gives you a multidimensional look at the table. You can visualize the fatness, and quickness, and shape of the data."

• This stuff will be really great to play with too!!

J

It would be great if you could post your finished product if it succeeds. I don't know much about what sunji and obiwannabe are talking about beyond the basic calculus stuff, so it would be fascinating to see a demonstration, especially in an aesthetic context.

Yes, I certainly will!

Was there ever any progress with this project? Sounds very interesting.

ok, some small progress has been made on this- check it out on my soundcloud page

It's a couple of things going on here. A live jam, I'm playing the egamelan, my amigo is bozioing some mididrums, and there is the synthonic support orchestra, which is jamming right along with us. The correlation is still baby steps, but I am happy with the prelim results.

Hi Sunji,

It it possible to share the patch?

Ricky

Ya sure, check it out. I do some spaghetti patching to get different effects.

Things I want this to do:

1. figure out what the hell [gestalt] does
2. incorporate Manzo's tonal library for better analysis and synthesis
3. finish integrating the auto correlators, you'll notice that there's some smoke waving and man behind the curtain code in there right now.

http://www.pdpatchrepo.info/hurleur/synthony.0.1.pd

the correlation patch is here, but it's so messy that I haven't moduled, to stick it in the synthony. It morphed into a hung up retread of Scrambled hackz

http://sourceforge.net/projects/scrambledhackz/

And as yet incomplete. This is extremely poor code right now! AAHYWEH.

but, the correlate functions could read the tables in the melody analysis subpatch in the synthony. motives will be successive strings of 0's in the correlate functions.

http://www.pdpatchrepo.info/hurleur/hambledscrakz.zip