[sdiy] Unique sounding modules that can't have voltage control?

[Didrik Madheden]

I think the boring answer is that there really are no examples where you
absolutely can't make it voltage controlled. Which is why people in this
thread, myself included, have had to go to increasingly obscure devices to
find counterexamples. (And creating an interesting discussion in the
process I might add.)

As Brian put it:
> Bottom line: The only difference is cost. You should be able to make
anything follow CV without changing the quality of the sound.

/Didrik

On Fri, 9 Feb 2024, 15:38 cheater cheater via Synth-diy, <
synth-diy at synth-diy.org> wrote:

> Those are all fun to talk about where appropriate but we're trying to
> specifically focus on
>
> >>> RESISTIVE POTENTIOMETERS <<< on the front panel of a normal electronic
> (not electromechanical, not optomechanical, not mechanical, not fluidic)
> circuit
>
> being replaced by
>
> >>> ACTIVE COMPONENTS <<< in order to create a CV input
>
> whereby it
>
> >>> CHANGES THE SOUND <<< or actually >>> MAKES THE CIRCUIT NOT WORK <<<
>
> specifically we're talking about RESISTIVE potentiometers and not:
> variable capacitors, varistors, antennas, optical sensors,
> time-of-flight sensors, or whatever
>
> thank you
>
> On Fri, Feb 9, 2024 at 3:29 PM Todd Sines via Synth-diy
> <synth-diy at synth-diy.org> wrote:
> >
> > There are many ancient analogue processing techniques in the time domain
> processing field that I would *LOVE* voltage control of, but are damn near
> impossible due to physics, mechanical feasibility, practicality, or
> finances:
> >
> > Voltage controlled spring reverb -- where the spring length is adjusted
> over time to simulate expanding space. This could be done with stepper
> motors on a sliding track, but you cannot increase the length of the metal
> in the spring, only how much which it is stretched. If you could adjust the
> transducers / contacts over time and "dampen" the unused portion of the
> spring, perhaps you could use a motorized "capo" and contact mic.
> > Plate Reverb -- same problem, but replace the spring(s) with a gigantic
> steel plate
> > Cooper Time Cube -- See this:
> https://www.uaudio.com/blog/cooper-time-cube-power/
> > ADT/Flanging -- https://en.wikipedia.org/wiki/Automatic_double_tracking
> > real, through-zero-flanging, not simulated flanging. Impossible without
> 2 tape decks, turntables, or CDJs playing the exact same source material at
> precisely the same time. The Marshall Time Modulator is 90% there, but
> there is a difference between The Beatles "Lucy in the Sky with Diamonds"
> (tape) or Siouxsie & the Banshees "Dear Prudence" (tape, possibly with a
> Boss Jet Phaser) at 1:28 vs. Bauhaus "Terror Couple Kill Colonel" (Marshall
> Time Modulator)
> >
> >
> > Todd
> >
> > On Feb 9 2024, at 8:54 am, Neil Johnson via Synth-diy <
> synth-diy at synth-diy.org> wrote:
> >
> > Hi,
> >
> > cheater cheater wrote:
> > > I'm looking for synth modules or circuits which have parameters that
> > > cannot be voltage controlled - and which have a unique sound that
> > > similar circuits compatible with voltage control cannot recreate.
> >
> > Passive mult?
> >
> > You'll get the hifi types extolling the benefits of solid-gold jacks
> > and how if you mount it upside down it so tooootallly sounds like
> > soooo much better dude.
> >
> > Neil
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