Frangitron is a personal audio project that started in 2018 and has been on pause since march 2019
The original idea was to make a device that would gather sound and midi from different hardware synths, in order to play them live, in addition to background loop/pads samples
The interface consists of 5 rotary encoders and the official Raspberry Pi 7" touchscreen.
The PiSound was chosen for its stereo input/output, low latency and very good audio quality
The Midibox was used as a usb MIDI interface with synthesizers. The rotary encoders were attached to it and their values sent as MIDI CC over USB.
The software is written in C++.
The graphical interface was done using Qt. The audio/MIDI engine with PortAudio
The CAD design was done in FreeCAD
The panel is a laser-cut then folded sheet of aluminum. Some inside parts were 3D printed
The first main iteration of the software was a simple two-decks Dj mixer, that was synchronized with MIDI to an Elektron Machinedrum UW+ Mk2
I hope more iterations will come in the near future.
Thank you for reading.