Percussa’s SSP Eurorack powerhouse does 3D, plugins, SDK – and a bit of everything


It’s a modular within a modular. It is a multitrack recorder. It is a multi-channel audio interface. It’s a resume hub. And now it does 3D graphics – and an SDK plugin has lured well-known developer TheTechnobear.

The Percussa SSP packs serious computing and signal processing power into your Eurorack – so it’s just about any polysynth, sampler, granular tone generator, CV slicer, multi-channel audio device you love. It’s just generally a little crazy – the kind of thing people dreamed of years ago, or you’d find in an archaic, incredibly expensive black box at a research facility. (Hey, no everything about the future sucks.)

The Percussa page gives a good summary of all these possibilities. So let’s talk about what’s new, that is, what Percussa will be sharing at the Superbooth this week.

There’s now 3D graphics on this beast, with GPU-accelerated raytracing. It’s not just so you can look at the spheres – they’ve created a new “3D wave sweep oscillator to match the fancy visualization. Basically, think of a wavetable oscillator with morphing on the axes X, Y and Z.

So of course you can use a computer for some of that – physical modeling membranes, live granular effects, layered sampler, etc. But the SSP is also a multi-channel audio interface (24-channel USB in this latest update to be exact) for your computer, plus you can use CV/gate/trigger channels. In other words, it’s a mini-computer in your rig, and it’s a bridge between your rig and your computer – both.

They also updated their SDK plugin, which also supports 2D/3D graphics via OpenGL ES.

Developer TheTechnobear has been working on it for quite some time. It started in the summer of 2020 with an adaptation of Mutable Instruments’ rings to the SSP command layout, UI and platform (pictured). Over the past few days, Mark has announced that he has a ton of new plugins and will be at the Percussa booth here in Berlin. It also contributes to the basic software. So, Percussa, we better come and visit you.

See the full multi-year thread on his progress:

Note that while TheTechnobear has done a lot of open source work, Percussa is a closed source project.

Mark does a great explanation of what it’s all about:

Oscilloscope app by Thetechnobear.
Powerful mixer.
Ringtones on SSP, early construction. We now have nearly a dozen plugins to catch up on, with more on the way.

It’s a good time to catch up with Percussa in general, as we still weren’t up to full international attendance at the Fall Superbooth, and they’ve been quite busy.

So, to recap:

  • New graphic rewrite
  • GPU acceleration
  • SDK Plugin Support for OpenGL ES
  • Improved memory management and other fixes
  • 3D wave sweep oscillator with GPU-accelerated raytraced 3D graphics
  • Step sequencer, sampler and direct-to-disc recorder improvements
  • 10 new plugins from TheTechnobear (performance mixer, matrix switches and mixers, sample and hold modules, utility modules and ports of open source modules such as Clouds, Rings and Plaits, for starters)

Beta end of June; exhibited at the Superbooth.


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