homemade polysynth

4 vco's, and some other modulation-oscillators (squarewaves) backing them up military style & also, a resonant rlc filter, and a asymmetrical diode clipping stage for extra smut. current draw is <100mA so it will run allll night on battery

the casing is a old rusty money box i found in an attic

pics from a webcam. on the bench

in natural habitat

The mp3 isn't working?

Niiiiiiice! How difficult a project was this?

I couldn't hear the mp3 either....

right the mp3 works now, it is two bits, first a soft wet bit then harsher crunch

it wasn't that complex, it is polyphonic but the voices are simple and, for example, instead of proper envelopes i used this system of auxillary lfo-like oscillators that can modulate the amplitude of the voices. total cost of this was about 60 euro's

The soft wet bit sounds excellent. Good job on making this, it's very nice.

Sounds totally wicked, love it.

You're missing the flux capacitor and the teltonic simulator.

there are actually a few lateral-flux capacitors in there... still, nothing that would make you travel through time when accelerated to 88mph!

cv control per-voice? i only see one cable going into it... midi??

this is sooo nice - do you have some of the construction plans? i want to build it too :smiling:

  Jonas said:

Sonologisch verantwoord goed ;)

ja toch, hij kraakpiept en iepknort lekker weg en als ik 'm zat ben kan ie altijd nog voor de sier op de schoorsteen-mantel in BEA5

  kokoon said:

cv control per-voice? i only see one cable going into it... midi??

no external control whatsoever just one lone money box with some knobs & switches VS the world

there is: 1 input (for feeding external signal through the diode-clipping bit), one output for the dry synth sound and one output for some wetter stuff

  o00o said:

this is sooo nice - do you have some of the construction plans? i want to build it too :smiling:

if i would have to start all over i would go for these two books:

http://www.lulu.com/content/1065518

http://www.amazon.com/Art-Electronics-Paul...z/dp/0521370957

first unplug your internet connection, get a breadboard (experimenting circuitboard), a nice soldering iron and all that other tools, then completely dissect every circuit in the first book with the help of the theoretical explanations in the second book. try to build bits of those circuits, by the time you have something up & running you will be wise. if you dont unplug your internet connection you will be lost in the web of synth-diy info and you will be dizzy and not know how or where to start

awesome. But im not sure this qualifies as polyphonic, seems more like multi-voiced.

sounds good

especially the "crunch" part..

Good for recalibrating my brainwave generator on a sunday.

Nice ginseng tree btw!