MATRIXSYNTH: DIY B5 Analog Polyphonic Synthesizer Demos

Thursday, June 29, 2017

DIY B5 Analog Polyphonic Synthesizer Demos


Published on Jun 7, 2016 adamstan84

"Better late, than never :-) I've finally managed to record demo video for my DIY polysynth built in 2008. 5 voices with 2 VCOs, 3 EGs, 3 LFOs, Ring Mod, Noise source and Moog ladder filter."

Marek Biliński - Fontanna radości (cover)

Published on Sep 24, 2009 adamstan84

"Cover nagrany jako utwór demonstracyjny dla zbudowanego przeze mnie w ramach pracy dyplomowej syntezatora analogowego widocznego na filmie. || Recorded as demo track for my DIY analogue polysynth shown on video. Don't know why, but I can't post replies to comments. http://electro-music.com/forum/viewto... - here I've written something more about this synthesizer (there are schematics and source codes). In short - analogue circuits are common designs taken from various sources, digital control circuitry is my design."

"After almost 2 years of work, I've finished my DIY polysynth Very Happy Very Happy It is based on various module designs available on the net.
I consider it to be a "Poor mans Memorymoog" with a little bit of Prophet 5 thrown in Wink. It features:
- 5 voices
- 2xVCO per voice
- 3xEG per voice (hardwired to pitch, cutoff and volume)
- 3xLFO (pitch, cutoff and PWM)
- Moog ladder VCF
- Noise source
- Ring Modulator
- Patch memory (128 user patches)
- MIDI
- Mono mode with selectable note priority (High/Low) and triggering (single/multi) and with portamento
- unison with adjustable detuning
VCO A offers sawtooth, square and triangle. VCO B offers sawtooth and square waves. Having triangle wave available is essential if you want to obtain some nice fm-like sounds from RingMod.

It's built using only standard off-the-shelf components - no CEM or SSM or similar chips inside - only typical opamps, switches, transistors etc.

Case (together with keyboard) was salvaged from some crappy 70's combo organ."

Also see this post.

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