Bean Jelly is a weird and wild desktop synthesizer.
It has the capability to be played with a keyboard, via CV (or using a midi to CV converter), but that's really not what it's about.
It has a clocked random source, that can be made to loop the previous 8 or 16 steps.
This becomes a modulation or pitch source for the oscillators, or the VCF.
You can use this to make looping melodies, or a never ending ransom sequence.
Depending on how you setup the oscillators and filter, it can become a drone machine, generate percussive sounds, or spin forth some phat and funky bass lines.
It's also eurorack compatible, and the Rung Bits (1,2 &3) are great for triggering drums or other events.
But this thing is really a cross modulation monster. Everything is normalled to everything. VCO1 can modulate VCO2, and VCO2 can then modulate VCO1 in a never ending loop of robotic FM discombobulation. Both VCO's can modulate the filter. VCO2 can clock the random source, which can modulate VCO2 again. You get the idea. Everything is connected.
This opens up a whole new realm of wonderful squelchy modulation from LFO to audio rate.
Specs and Features:
2x VCO's with individual Pulse and Triangle outputs + PWM combined output (normalled to VCF), VCO crossmodulation and 1V/Oct tracking. LFO range through to Audio Rate.
1x VCF with sweep and resonance, LowPass, HighPass, and BandPass outputs + switchable pre filter gain boost.
1x Rungholter Tanz Randomizer output, pre patched to VCO's + VCF with depth controls, also has 3x 5V Gate outputs, plus looping or infinite modes.
3x CV inputs with Depth Control (2x VCO + VCF).
Internal Clock (VCO2) + 1x External Clock input.
External Audio input and Internal Audio disconnect.
XOR input and XOR output.
Looping, 8 or 16 step with loop offset control.
USB or 9V - 12V DC powered.
19x 3.5mm jacks and 2x 6.5mm jacks for integration with EuroRack synthesizers and guitar + bass amplifiers.
3x Super cool flashing LED's
This synth originally followed Benjolin architecture. It's had an absolute ton of development and mods over the last few years, and will continue to be improved (filter out levels are next on the todo list). Credit to Rob Hordijk for the original design and inspiration.
Fantastic demo video from Bribery's Production House
Gehirn Enterprises Demo Video
Dual Bean Jelly Madness !!