Any way to do this patch in VM?

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Bata
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Any way to do this patch in VM?

Post by Bata »

If there are any experienced users who could help me out here I'm trying to recreate the sound from this patch.

https://www.youtube.com/watch?v=XT-DUq0G6gk

He posted this along with the patch but it didn't help me much.

"The primary VCO has a sync input that also has subharmonic locking circuitry. I think of the subharmonic series as a kind of mirror image of sync sounds with the frequency of the reference pitch serving as the axis of reflection. By using the primary VCO to generate overtones of a a reference pitch and the secondary to generate undertones of the primary you can create melodies and shifting patterns locked to an external reference"

When I asked how to do this on a computer he said it's probably possible in VCV but I'm wondering if I can do it in VM. He linked me to this thread with some patching ideas but most of it is over my head.

https://www.modwiggler.com//forum/viewt ... p?t=241939

If anyone could figure out how to do this and explain it to me I would be very grateful!
UrbanCyborg
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Re: Any way to do this patch in VM?

Post by UrbanCyborg »

I can't say I'm 100% sure exactly what his patch is doing, but I suspect that R_Ware's Partial Oscillator and Partializer, Vulpus Lab's Chebz, and Andrew Macaulay's Voltage Controlled Envelope would get you some distance into the problem. You might also take a look at the additive synthesis patches in my First Baker's Dozen Presets for possibly some insight into what you might do (it's free, and you can demo any of my modules it uses for a week).

I'd be more clear on what he's doing if he'd supplied a patch diagram for his hardware setup. Anyway, maybe this will give you some starting points.

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huggermugger
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Re: Any way to do this patch in VM?

Post by huggermugger »

I checked out the video and also the modwiggler discussion, and then began fiddling with Collider's FUNC function generator. I'm not successful - yet - and I don't know if it's even possible, but you might start there. Maybe also reach out to Collider and ask if he might shed some insight.

https://store.cherryaudio.com/modules/f ... -generator
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utdgrant
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Re: Any way to do this patch in VM?

Post by utdgrant »

You could definitely use the Big Rat as an audio-rate voltage-controlled envelope generator. It has independent 1V/Oct control over rise and fall times. 28 days free demo period to see if it fits your needs.

A comprehensive user guide is available here (RAT Pack Bundle).
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utdgrant
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Re: Any way to do this patch in VM?

Post by utdgrant »

You can use these DC voltage offsets to get precise frequency multiplication (+ve voltage) and division (-ve voltage) ratios when connected to an oscillator's 1V/Oct CV input:

x 1 = 0.000 V
x 2 = 1.000 V
x 3 = 1.585 V
x 4 = 2.000 V
x 5 = 2.232 V
x 6 = 2.585 V
x 7 = 2.807 V
x 8 = 3.000 V
x 9 = 3.170 V
x 10 = 3.322 V
x 11 = 3.459 V
x 12 = 3.585 V
x 13 = 3.700 V
x 14 = 3.807 V
x 15 = 3.907 V
x 16 = 4.000 V
Frequency Multiply and Divide by 3.jpg
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Re: Any way to do this patch in VM?

Post by utdgrant »

I've created a patch which will quantize an input voltage in the range +/-5V so that it provides the correct V/Oct offsets for Sub-Harmonics and Overtones in integer steps.

It will generate overtones from x1 up to x8 the base frequency from +ve inputs.
It will generate sub-harmonics from x1 down to x1/8th the base frequency from -ve inputs.
Harmonic Quantizer.jpg
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Here is the patch, if you want to experiment:
Harmonic Quantizer.voltagepreset
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And here is a quick demo of it in operation (YouTube link).
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honki-bobo
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Re: Any way to do this patch in VM?

Post by honki-bobo »

There's also a module that creates pitch CV values up/down to the 32nd (sub-) harmonic: Pitch Harmonix
16 Harmonics with mixer.png
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Bata
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Re: Any way to do this patch in VM?

Post by Bata »

Cool! Thanks for all the suggestions. Lots of things to try out now.
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