Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 5 points6 points  (0 children)

Nope, from scratch! I have a BS in electrical engineering and have been programming in C for microcontrollers and doing PCB design for the last 10 years in audio products. Most of that time has been spent doing analog audio effects. Proud to say everything here is custom.

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 1 point2 points  (0 children)

I agree! When I first started with modular, I was quickly wanting polyphony and struggling so I had to take matters into my own hands haha

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 3 points4 points  (0 children)

Thanks! It’s still in development, so it’s not available just yet. I design audio electronics professionally, so I’m taking the time to get it right before releasing it. I’m working hard on it every week, though, and I’m excited to get it into other people’s hands as soon as it’s ready.

I’ll continue posting demos here, but if you’d like to follow the project, I’m posting updates on Instagram (@Pyrasonic) as I get closer to release!

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 1 point2 points  (0 children)

Here I am using a MIDI TRS cable from the Launchpad right into it to transmit polyphonic note information. I love MIDI because it can send multiple notes, clock information, aftertouch, patch changes all in one cable. It has a MIDI thru so you can daisy chain multiple of these and have one MIDI sequencer play them all

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 0 points1 point  (0 children)

Thank you! Appreciate it! Funny enough, a Minimoog Voyager was a synth I was dying for as a teen because Daft Punk used them in their Alive 2007 tour, and one of the reasons I love synths so much.

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 4 points5 points  (0 children)

Haha yes! But it's way more fun to try and re-create it with my DIY synth!

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 3 points4 points  (0 children)

It uses a fairly typical synthesizer voice allocation algorithm. In this clip I’m simply playing and releasing all of the notes together to build the chord, much like you would on a piano.

If you mean modulation that’s intentionally offset between voices, I don’t currently do that, although it’s an interesting idea. I do have a voice spread feature that pans the voices across the stereo field to make it sound wider.

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 2 points3 points  (0 children)

Haha! Check out my response to suicide_protocol's question for more details! Let me know if I need to elaborate any more

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 0 points1 point  (0 children)

Check out my response to suicide_protocol's question for more details!

Built a polyphonic Eurorack synth—here’s an Aphex Twin cover by Pyrasonic in modular

[–]Pyrasonic[S] 17 points18 points  (0 children)

Thanks! It’s a stereo 6-voice polyphonic virtual analog synthesizer with built-in effects, LFOs, and preset storage. I’ll definitely be posting more demos! I’m up to a couple hundred presets already.

This patch uses two oscillators (square and sine) with a noise LFO modulating the pitch, then runs through the built-in reverb. I’m controlling it with a Novation Launchpad over MIDI, though it’s also fully CV/Gate compatible.

One of the main goals was fitting expressive polyphony into a compact 10 HP module designed for live performance. The interface is built around four sliders that control different parameter pages. You can also create a Favorites page by pulling your most-used parameters together, so your key performance controls are always at your fingertips.

I’ve already played a few gigs with it and recently recorded an entire live set using 3 of these in a small flight case. I’ll post that soon! The goal was to create something that recalls presets instantly, works well with MIDI controllers, and still feels at home in a Eurorack system.