oli
*****
"OPERA ROTAS is a mutant, generative drum machine. It's built around a Yamaha OPL2 FM audio chip, a close cousin of the Sega Genesis / Megadrive consoles.
At the core, it has a real Yamaha OPL2 audio chip and live sounds bonkers. Brutal, it's all body weight while being crystal clear and punchy. Really the videos don't do aural justice but it serves to get an idea. There will be decent audio demos coming to my Soundcloud soon.
The firmware is a work in progress. One branch of the firmware consists of attaching a midi keyboard to it and converting it into a fully fledged polyphonic synth.
The project will go open source at some point. I just ask for people to not do commercial PCBs of it, as I sell it here. If you get one PCB or kit you can ask for the source code to tweak it if you will.
It comes in 4 flavours:
https://www.youtube.com/watch?v=n5f06JGuNN0
At the core, it has a real Yamaha OPL2 audio chip and live sounds bonkers. Brutal, it's all body weight while being crystal clear and punchy. Really the videos don't do aural justice but it serves to get an idea. There will be decent audio demos coming to my Soundcloud soon.
The firmware is a work in progress. One branch of the firmware consists of attaching a midi keyboard to it and converting it into a fully fledged polyphonic synth.
The project will go open source at some point. I just ask for people to not do commercial PCBs of it, as I sell it here. If you get one PCB or kit you can ask for the source code to tweak it if you will.
It comes in 4 flavours:
- Built unit. Ready to plug and play.
- Full kit. Everything you need to build one. You need to solder it. Beginners level.
- Basic kit. The PCB plus a programmed SMT32 microcontroller. You source the rest of the components.
- PCB alone. You source all the components, program the chip, and run it."
https://www.youtube.com/watch?v=n5f06JGuNN0