Chirper!

Modular and other sound devices from BugBrand.

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deltaAquarii
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Re: Chirper!

Post by deltaAquarii »

Think it would be cool with some clocking/ddsr, dual envelope and lpg
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hollunderkurve
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Re: Chirper!

Post by hollunderkurve »

a reasonable price (385 Euro) for a chirper on German ebay: https://www.ebay-kleinanzeigen.de/s-anz ... 23-74-9436

just figured I would post it here since people are looking for them
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BugBrand
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Re: Chirper!

Post by BugBrand »

Here's where I've got to with it all:
- redid the whole PCB layout for the Chirper as there was a bit of excess crosstalk (may still be a little) & few minor changes
- addition of Expander header

- Expander has:
-- Digi Shift Register - like the DDSR but without recirculation, to generate stepped waveforms (0 to +10V)
-- S&H + White Noise
-- basic manual Glide (aimed at sub-audio slew rates)
- and, of course, a fair bit of switch-normalisation to the main Chirper, so the OSCs can do the clocking etc or you can use external sources.

I haven't quite gelled with what the expander adds or maybe I'm getting too quickly carried away by it ;)

I'd likely put these in a 5FWx case with a Drive VCA to finish it up.
IMG_20220309_092427.jpg
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chrisdermo
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Re: Chirper!

Post by chrisdermo »

Will the expander function standalone? Obviously I want that noise generator but don't have room for the chirper module
WTB / WTTF: Bugbrand PRC2B, ENV1

Current Bugs frame:
https://www.modulargrid.net/f/racks/view/1340165
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BugBrand
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Re: Chirper!

Post by BugBrand »

chrisdermo wrote: Wed Mar 09, 2022 8:01 am Will the expander function standalone? Obviously I want that noise generator but don't have room for the chirper module
Still working on an alternative ;0
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chrisdermo
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Re: Chirper!

Post by chrisdermo »

BugBrand wrote: Wed Mar 09, 2022 2:46 pm
chrisdermo wrote: Wed Mar 09, 2022 8:01 am Will the expander function standalone? Obviously I want that noise generator but don't have room for the chirper module
Still working on an alternative ;0
:yay:
WTB / WTTF: Bugbrand PRC2B, ENV1

Current Bugs frame:
https://www.modulargrid.net/f/racks/view/1340165
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otoskope
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Re: Chirper!

Post by otoskope »

Very nice and dense combo! Could be the heart of a great little performance kit.
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T. Jervell
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Re: Chirper!

Post by T. Jervell »

❤️🔥 Wow! Looks reeealy Nice👌🏻
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Voltage_Controller
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Re: Chirper!

Post by Voltage_Controller »

very cool indeed
“The only truth is music.” ― Kerouac
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northerntao
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Re: Chirper!

Post by northerntao »

Are the oscillators in the Chirper the same chip as in the Compact VCO?
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BugBrand
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Re: Chirper!

Post by BugBrand »

Yes - they & many other designs are built around the 2164 Quad VCA chip.
They have the same basic triangle VCO core, though the CVCO has some extra trimmings.
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