Sunday, May 09, 2021

Polyphonic Eurorack: First Try and Walkthrough

video by thesrabbit

"Here's my first attempt at polyphony within a modular system. I've got 4 distinct voices, each with its own oscillator, filter, amp, and envelope. To make things more interesting, I added a sort of sub-oscillator to the first voice, though it can sound quite dissonant depending upon when that voice is triggered.

There is a very detailed rundown after the demo "performance", but to summarize:
Each voice is a single sawtooth wave, with the addition of a square wave sub-oscillator on voice 1. All 4 oscillators run through their own low pass filter. The first 2 run through filters 1 and 2 on the System-500 521 dual VCF module. The 3rd oscillator runs through the LPF on the System-500 505 module. The 4th oscillator runs through the LPF on the MS-20 Mini. From there, each voice has its own VCA, and then the output of those VCAs are routed to the System-500 530 module, which acts as a stereo mixer. Voices 1 and 3 are panned to the left, 2 and 4 are panned to the right. This produces an effect similar to auto-panning. All four voices run through a BBD and spring reverb tank, which adds a ton of extra grit. Each voice has its own dedicated envelope generator. The first 2 have the System-500 540's envelopes. The 3rd voice uses a single ADSR from the Dreadbox Ataxia. The 4th voice simply uses EG2 on the MS-20 Mini.

I did my best to get a similar sound out of each voice, though it's far from perfect. However, that's really the whole point of this experiment: to do something that no standard polysynth can do.

In the demo, I've got aux sends setup in Logic to the Audiothingies Dr. A for delay, and for reverb I've got my favorite Alesis MIDIVerb II and Quadraverb combo. These effects run in parallel and were recorded in real time along with the dry output of my mixer. I tried to mix in the effects so that they're about 55/45 dry/wet.

Modules used:
Roland System-500: 512, 521, 505, 530, 540
2HP VCO (x2)
Polyend Poly 2
Arcus Audio buffered mult
Pittsburgh Modular Giraffe (x2)
Blue Lantern Subharmonics
Manhattan Analog DTM
Doepfer Dual VCA (x2)
Dreadbox Ataxia
Erica Synths PICO BBD
G-Storm Electro Spring Reverb Tank Driver
Korg MS-20 Mini"

YAMAHA TX81z - Rackmount FM Tone Generator SN ON01656

via this auction

Waldorf Streichfett String Synthesizer w/ Original Box

via this auction

Radikal Technologie's Jörg Schaaf Music Video for the 11th annual MICA VIGIL 2 Day Music Festival

video by Jörg Schaaf

"I produced this video and music for the 11th MICA Vigil 2 days music festival in Baltimore. The video will go online one day after the festival at the 7th and 8th of Mai 2021. Check everything about this festival under the following link:

For the first time I used stock footage for a music video. Let me know what you think about using them. I especially like the work from Mikhael Nilov, who made the spaceship footage! The inspiration I received from watching the scenes also brought my music to a new level.

The music is available as a BandCamp album:"

Ambient Drone | Make Noise Strega, Erica Synths Syntrx

video by Akihiko Matsumoto

Making A Synthesiser Sequencer Out Of RELAYS Part 1


"Building a Relay Based Step Sequencer"

mind-sick (cirklon jam first recording) - 磁鬼頻率

video by 磁鬼頻率

"hardware synth cirklon techno jam This is my first recording after getting a cirklon this year. I was using basic features and it was a blast being able to jam properly with midi and cv gear so flawlessly. I'm excited to see where it takes me in the future..."

Access Virus TI Desktop Digital Synthesizer

via this auction

"Including original wooden side panels and 19 inch rack ears."

RSF Kobol Expander II Programmer Modular Synth

via this auction

"For sale is an incredibly rare vintage analog modular synthesizer setup: RSF Kobol Expander 1 + Expander 2 + Programmer. All units are in excellent shape and fully functional. Very rare to find even a single one of these pieces, let alone all 3 together in one set. This is an amazing French classic analog modular synth by Ruben & Serge Fernandez (RSF). Programmer was serviced with battery change for memory and power supply moved to prevent possible over-heating. You aren't likely going to find another set like this for sale anytime soon. Don't pass this up!"

Health Club Switcheroo Analog Synthesizer

via this auction

"These are incredibly hard to come by, very fun design and setup. Fully functional and in excellent shape."


Patch n Tweak

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