[PD] spring modeling/scanned synthesis

Alexandre Torres Porres porres at gmail.com
Sun Feb 25 19:45:01 CET 2024

sounds like a filter alright, with the noise input

now, I get

pmpd~: no method for 'setK'

maybe I dont have the latest version, isn't there a new release coming up
to deken?

Em sáb., 17 de fev. de 2024 às 07:01, cyrille henry <ch at chnry.net> escreveu:

> Le 16/02/2024 à 19:16, Alexandre Torres Porres a écrit :
> > ok, one more thing...
> >
> >         The 1st is just a very basic implementation : it's not possible
> to define a non-linear link for example.
> >         The 2nd one solve them in a very simple scenario : 1 mass and 1
> spring. So it's not possible to create other network.
> >
> >
> > So Spring from SuperCollider is just a very simplified model, and
> according to people in the SuperCollider forum it's not really different
> than a 2nd order filter like Ringz or resonant~ from ELSE, right?
> the SC spring is not a simplified model, it's the standard model. (you can
> only add complexity to the classic MSS)
> if you put 1 mass and 1 spring, you have a 1st order filter.
> if you put two 1st order filter one after the other, you have one 2nd
> order filter.
> > So I'm failing to see where SuperCollider's Spring shines. I already
> ported it to a compiled Pd object, and I also ported the MAX code but I
> can't see why I should bother including them or what would be special about
> them. I like the Ball object from SC and that seems like something fun to
> have...
> > But then, I think I mentioned this before, I came across Spring in SC
> here on this code on Scanned Synthesis https://sccode.org/1-4Rm <
> https://sccode.org/1-4Rm> it's just a chain of Spring objects connected
> in a series, with a feedback loop, so it's circular. The output of each
> spring is an audio channel output and an object crossfades between the
> channels and "scans" it.
> I don’t know anything about SC or Max, so I can't talk about that.
> scann synth was propose when a 100 masses simulation need too much CPU to
> be computed in real time at audio rate. So the shape of the string was only
> computed at data rate.
> if you use audio object, then it's not scanned synthesis. it's just PM
> audio simulation.
> So, your just mixing multiple things here, and I hardly understand this
> discussion.
> cheers
> c
> >
> > So now I wonder if Spring is indispensable in this patch, and if one can
> just use some other 2nd order filter instead. I am also presuming that
> there might be some technical details where the sheer simplicity of this
> setup misses some important factors that you are covering in your scannd
> synthesis implementations with pmpd, huh?>
> > Cheers
> >
> >
> >     thanks for clarifying
> >
> >         But if you just want to play with meaningful parameter without
> understanding the physics, then pmpd is not for you.
> >
> >
> >     This is what I realize, and I would also like to have some higher
> level ready made and easy to use toys for simple tasks.
> >
> >         there are lot's of software dedicated to MSS, the equations are
> all about the same.
> >         But physical modelling is broader than MSS.
> >
> >
> >     sure, I see
> >
> >     Thanks for the references and answers.
> >
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