MATRIXSYNTH: Gehirn Enterprises Bean Jelly Synthesizer

Sunday, May 01, 2022

Gehirn Enterprises Bean Jelly Synthesizer

video upload by Gehirn Enterprises

"Demonstration of Bean Jelly Desktop Synth built by Gehirn Enterprises in Nipaluna, Lutruwita.

The quiet bit in the middle has some subtle percussive sounds, sorry if it's too quiet to hear on your phone or laptop speakers.

Audio Equipment used:
Bean Jelly Desktop Synth, Focusrite 2i2 Audio Interface, Metabox Laptop, Cubase5, M-Audio AxiomPro25 midi controller, MidiMuso Midi to CV converter, Audio Technica M50a cans.

Totally dry track into the interface and out to a wave file, no effects or audio post processing is used at all.

Video Equipment used:
Shot on a Samsung A51 and an OppoF1s phone. Arlec LED lighting from Bunnings. Edited with OpenShot open source video editor. DIY Rocks.

0:27 Modulate filter CV with VCO1 Triangle.
0:30 Modulate filter CV with VCO2 Triangle.
0:38 Add randomizer CV into filter.
0:44 Lower filter frequency and increase randomizer CV.
0:53 Increase VCO2 freq (and randomizer int clock).
1:00 Remove VCO1 and VCO2 modulation from VCF.
1:30 Add randomizer to VCO2, which makes the int clock non linear.
1:40 Add VCO2 triangle to VCO1 CV.
1:55 Change filter settings, add modulation, lower resonance etc...
2:05 Disconnect internal audio, many wiggle to generate percussive sounds.
2:50 Add Keyboard CV to VCO1 CV and VCO2 CV inputs, Gate to filter CV in.
3:10 Reconnect internal audio, much wiggle to setup for use with keys.
3:50 Tune VCO's. Play with keyboard.
4:44 Turn on internal clock, crank VCO2 and make some noise.
5:15 Squelchy robots.
6:05 8 step LOOP.
6:20 Filter Overdrive.
6:40 Crank VCF randomizer so filter only opens up on higher notes, 16 step loop.
7:00 Open up filter, modulate VCO1 CV with VCO2 Triangle.
7:30 Get noisy. Many wiggle.
7:58 FIN."

via this auction

"Desktop synthesizer with:

2x VCO's with individual Pulse and Triangle outputs + PWM combined output, crossmodulation and 1V/Oct tracking.

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 + 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"

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