Love how this sounds, it sounds surprisingly analog like

Sounds gorgeous, would be a pretty lead.

Great video! Thank you for your work you spent on the Ostman Solina, which I found to uninteresting in it's original state. Didn't even recognize it didn't have DIN MIDI. But the final game changer is the gate output. Together with EG, VCF and VCA, you get something Korg Poly-800-alike, which is not too bad considering the low cost and effort. The pinnacle would be an additional PWM CV output which doesn't have to be 1V/oct, just for the sake of brightening up the filter cutoff at the higher notes. But I can also implement that by chaining the string synth with a MIDI to CV interface. I have some assembler code to run on a little ATTiny85 with an optocoupler for MIDI and a pwm output with a plain passivce RC lowpass for the CV. PWM frequency is high enough so you get all the steep note changes without any unwanted portamento, which I would have expected from a circuit as simple as this. I can send it over, if you're interested.

Dang this sound surprisingly good!!

I love u for not to use reverb + delay + harmonizer, etc, etc like everyone else for show a sound!!!

All your projects have a very pleasant vibe, even if they are simple in design

The distortion is to die for!! Great playing as well ❤

WoW! Thank you for sharing.

sounds better than any synth i own. thats incredible

Cool!! That's crazy i was just looking for something like this!! Great video as always!

i like a lot your stuff,great!!

sounds like a hybrid synth to me no cap

Berry nice. Little mistake on your version of the filter schematic. The 10k resistor after the dual pot should connect to the wiper of the second pot in the dual pot.

You make life worth living my dude.. just you.. who you are.. how you be.. is..

You're awesome! Truly multi talented!

you are so cool man 🥺

I love the ‘anti-aesthetic’ ❤

nice work, this sounds really great!

Fantastic sounds!

Really nice work here

This is so cool !!! Keep going !

Sounds wicked 👍😁

Maybe aliasing on the higher notes, could you increase the internal clock rate or something? Sounds great lower down though! Also 6 voices would be nice, is that a limitation of the Arduino's processing power? I know nothing about that, but cool project anyway. Nice work!

With regard to the bleed through - maybe you could add a VCA before or after the filter which is controlled by the gate from the Arduino pin D10 ?

The bleed might be leaking through the feedback path

When the ensemble is turned up I wonder whether the distortion is simply due to clipping. The summ of the signals gets too large (positive or negative) and therefor the amplitude to the DAC clips at the maximum integer value. By keeping the amplitude at bay, you might be able to prevent the clipping from happening.

u should make an online store bro. i’d buy this

rad haha dig the mic!

maybe a simple compressor to tame that gain? Not sure if simple compressor circuits can be DIYed up...

Do you think a DIY CS-80 is possible? (with Arduino and the GX-80 VST)

I'd strongly recommend to use the gate output with an envelope and add a AS3320 based filter to it. You won't need a VCA since the "oscillator section" comes with it's own volume control. But DUDE that 3320 filter sounds super fat with resonance turned all to zero and giving it an slower attack brass sound like envelope. You really get some prophet vibes. How difficult could it be to change the code from driving a PWM audio output to driving a dedicated DAC chip?

Hi Lauri, thank you for this! i want to build one ore two DCO like this. Have you an idea how to get the Pitch working?

niiiiice! I've tried to build it on Arduino Uno, but it doesn't work! The RX led doesn't even blink :( I've replaced the octocoupler's diode with a led to see if there is signal from my keyboard at that one is fine... Would you have an idea about what could be wrong? Thanks a lot!

you have a 12v psu, but the schematics display 5volts needed . Did you had to scale down? i am asking for laziness purposes, thx!

would it be possible to control the rate with CV (or even other parameters) ? :)

Wow it's weird seeing that dude's name here. The guy has been completely run out of the synth world for lying and massively exaggerating the capabilities of his products and scamming dozens of people out of money and never sending them their product. He's infamous on the muff wiggler forums. I've been looking into DIY electric instruments myself lately and see his name all over the past internet, and he undeniably did have some good ideas and was at least a somewhat talented engineer. But I've seen too many of his designs that do not have proper safety circuits in place and/or do not work as intended. I am working to recreate his tiny TS synth right now.