[sdiy] Stretched harmonic synthesis
cheater cheater
cheater00social at gmail.com
Sun Feb 20 00:49:42 CET 2022
You're talking about PDEs.
On Sat, Feb 19, 2022 at 11:24 PM Mike Bryant <mbryant at futurehorizons.com> wrote:
>
> All differential equations require a delay to solve them - either z-1 in digital or s-1 in analogue (often an integrator but can be a sample and hold)
>
> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of cheater cheater via Synth-diy
> Sent: 19 February 2022 20:57
> To: synth-diy
> Subject: Re: [sdiy] Stretched harmonic synthesis
>
> I was wondering if anyone knows any ODEs which generate a signal with harmonics which are progressively stretched? Meaning higher partials are further apart.
>
> Or alternatively progressively contracted - higher partials are closer together.
>
> Are ODEs the only kind of differential equation that can be solved without a delay line?
>
> Thanks
>
>
> On Fri, Feb 18, 2022 at 6:07 PM cheater cheater <cheater00social at gmail.com> wrote:
> >
> > Hi, I was wondering if anyone ever tried Karplus-Strong synthesis with
> > an all-pass filter (APF) in the feedback, in order to obtain stretched
> > tuning, and what your results were.
> >
> > https://ccrma.stanford.edu/~jos/pasp/Dispersive_1D_Wave_Equation.html
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