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<div class="moz-cite-prefix">Tim Parkhurst:<br>
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<div dir="ltr">Just a thought: skip the voltage control, put in
digipots for the panel controls, and make the whole thing
programmable. Especially for use as a resonator, it would be
cool to dial in several acoustic instrument responses and then
be able to bring them up quickly. Okay, maybe keep voltage
control of the center frequency for nifty sweep sounds. <br>
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Ha. That's pretty much the PCB I started a year ago, but then got
interrupted and put it on hold.<br>
I, too, had seen/heard that one video, and thought putting in a
cheap-ish MCU and make it recall settings and maybe change settings
via MIDI, to get those different instrument sounds qickly, would be
really neat. Just that I wasn't hell-bent on replicating the Moog
thing's special reponse exactly, used 3x OTA based SVF instead, and
cheap PWM control with simple filters -> very slow control speed
(with regards to "fancy sweeps", which won't be too fancy then I
guess).<br>
Maybe some ugly winter day, I'll pick that project up again...<br>
Or the OP is faster, let's see :D<br>
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<div>And while we're talking about resonators and the ARP 2700
(over on AH), has anybody ever found schematics for, and
successfully duplicated the fixed filter / resonator section
of the ARP Soloist and Pro Soloist? Seems like that has a
history of pretty useful acoustic instrument responses. Also,
has anyone ever run a poly synth through a Soloist resonator
section? Also also, how does the Soloist switch presets? Are
there a bunch of relays or transistor circuits in there
switching different resistor and cap values around?</div>
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<div>Tim (on a questionable question quest) Servo</div>
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<div dir="ltr">On Fri, Oct 12, 2018 at 1:52 AM Tom Wiltshire
<<a moz-do-not-send="true"
href="mailto:tom@electricdruid.net" target="_blank">tom@electricdruid.net</a>>
wrote:<br>
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> On 11 Oct 2018, at 18:31, Rutger Vlek <<a
moz-do-not-send="true" href="mailto:rutgervlek@gmail.com"
target="_blank">rutgervlek@gmail.com</a>> wrote:<br>
> <br>
> That video is also my sole reason for wanting a
resonator. I'd actually hope for the resonator to also be
able to track keyboard moderately well to (optionally)
maintain a fixed interval between notes played and resonant
frequencies.<br>
<br>
That’s possibly useful, but missing the point of a
resonator, I’d say. The idea is that we’re modelling the
resonances of a instrument body in some way, and those are
fixed for a given instrument. That’s a key part of what
gives one instrument a different character from another.<br>
<br>
> My suspicion is that Elhardt identified a very small
number of sweet spots that are very well tuned to the input
signal as well as to the reverb on top. I believe it's only
partly thanks to the resonator, but also thanks to his
craftsmanship (or many hours of exploration) that he can
make it sound this good.<br>
<br>
Certainly his playing is a big part of the success of that
video. He takes a “trumpet-like” sound, but then does a very
good job of playing it like a trumpet. If you’d done the
“Jump” chords (for example) instead, it wouldn’t have
sounded half as good.<br>
<br>
Tom<br>
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