Developer Johannes Taelman has introduced Axoloti, an open platform that lets you create custom hardware synthesizers and audio processing systems.
It’s built around Axoloti Core, above, a circuit board with stereo audio in- and output, audio analog-to-digital and digital-to-analog converters and a microcontroller, suitable for digital audio processing.
All connectors are on one side to make it easy to build your own tabletop device, rackmount, stompbox or something else.
Axoloti Core is configured using Axoloti Patcher, above, a modular audio environment.
The Patcher’s object library currently offers oscillators (sine, alias-free saw, square, pwm, some noise generators, FM modulation), 1st order and 2nd order filters, envelopes, LFO’s, tables, Midi I/O, analog voltage input, PWM output, and streaming wave file playback from SDcard.
The Axoloti patcher is written in Java and works on Windows, OSX and Linux.
When you’ve created a patch you like, the Patcher a binary executable code and uploads the executable to the microcontroller, with one single mouse-click. After uploading, the patcher “locks” the patch architecture, and parameters in the patch can be adjusted in real-time on the screen (or from a midi controller).
Here’s the official introduction to Axoloti:
The next video demonstrates how to set up a synth patch:
Here’s a demo of a ‘Hoover’ style patch on the Axoloti:
And here’s an example of an Axoloti beatslicer patch:
Once you’ve created a patch and loaded it to the Axoloti, you can use the hardware ‘brain’ to create custom synthesizers and audio devices.
The Axoloti supports a variety of hardware controls, including:
- LDR light sensors
- FSR pressure sensors
- Flex sensors
- Sharp GP2Y0A* infrared distance sensors
- Servo motors
Axoloti is being developed as an IndieGoGo project. The project has currently €6,130 of a €25,000 goal. See the project site for details.