2130 VCO (finally a larger VCO!)

Modular and other sound devices from BugBrand.

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BTG
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Re: 2130 VCO (finally a larger VCO!)

Post by BTG »

Same, very interested!
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a100user
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Re: 2130 VCO (finally a larger VCO!)

Post by a100user »

Missed this thread, otoskope’s phaser VCO demo brought me here, looks great Tom and I agree the wave mod is a better choice than PWM.
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lud
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Re: 2130 VCO (finally a larger VCO!)

Post by lud »

Yeah I really missed the wave mod left off the newer compact vco design Vs the old blue one and ended up just sticking with old
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northerntao
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Re: 2130 VCO (finally a larger VCO!)

Post by northerntao »

Is TZFM something that can be accomplished with a pair of the CVCOs and another module(s? Some way to add the frequency/pitch that goes past zero back as positive? If I’m understanding it correctly - FM has been way more art than science to me.
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BananaPlug
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Re: 2130 VCO (finally a larger VCO!)

Post by BananaPlug »

The perceptual thing about how we perceive low frequency, infrasonic clicks transitioning towards continuous tones, is a favorite area to explore. The chip specs say Frequency Sweep Range is a thousand to one and the module provides two 1V/O inputs, so dialing in something like 2Hz to 2KHz is doable right? Just checking.
:nana:
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BugBrand
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Re: 2130 VCO (finally a larger VCO!)

Post by BugBrand »

northerntao wrote: Mon Sep 06, 2021 7:17 pm Is TZFM something that can be accomplished with a pair of the CVCOs and another module(s? Some way to add the frequency/pitch that goes past zero back as positive? If I’m understanding it correctly - FM has been way more art than science to me.
No - it is either extra circuitry on the Lin FM input or, in this case, that same circuitry incorporated into the VCO chip itself.
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BugBrand
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Re: 2130 VCO (finally a larger VCO!)

Post by BugBrand »

BananaPlug wrote: Tue Sep 07, 2021 10:31 am The perceptual thing about how we perceive low frequency, infrasonic clicks transitioning towards continuous tones, is a favorite area to explore. The chip specs say Frequency Sweep Range is a thousand to one and the module provides two 1V/O inputs, so dialing in something like 2Hz to 2KHz is doable right? Just checking.
I just checked this on an old proto (didn't have a production one to hand) and it turns out that in VCO mode (small timing cap) the range bottoms out at about 1.2Hz (using a negative DC offset) - so, yes, you should be good to go there.
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Harko
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Re: 2130 VCO (finally a larger VCO!)

Post by Harko »

I'm looking forward to hearing some demos!
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BugBrand
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Re: 2130 VCO (finally a larger VCO!)

Post by BugBrand »

There are some demos and details up now - check the updated first post!
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