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

[Didrik Madheden]

Interesting question, and the answer really depends on the definition
of the question. Low hanging fruit would be a theremin. Not a module
as you requested, but just to make a point. The body of the performer
is an integral part of the circuit, so it would qualify at least in
that regard. But, what if you built a voltage controlled robotic arm
that controlled a replica of a human arm, and you now have a bonafide
voltage controlled theremin. :)

You might be interested in the diverse work of the artist Gijs
Gieskes. His works are not always eurorack modules, and they generally
do feature control voltage inputs. However, I feel like much of his
work would fit the spirit of your question. Some of his modules use
mechanical and electromechanical devices like relays, motors, optical
detectors modulated by a physical cam and so on to generate sound. The
sound would often depend on the exact physical layout of the product,
so you could argue that the sound is uniquely characterized by that. A
Gieskes module might in that case have a VC input for the speed of the
motor rotating the cam to take an example. Technically a voltage
control, however what's controlled is a mechanical device and not a
purely electronic device.

https://gieskes.nl/

/Didrik

On Wed, 7 Feb 2024 at 19:23, cheater cheater via Synth-diy
<synth-diy at synth-diy.org> wrote:
>
> Hi all,
> 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.
>
> Thanks!
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