This project can be used as an organ-like instrument or also as a kind of additive synthesizer. The design is completely different to the organ project but also capable of covering some important features.
The project has been tested on PCB ML v1 (ref: https://youtu.be/Lp65Urhy1-U) It should be compatible with ESP32 Audio Kit and also easy to use with a stand-alone ESP32 with DIY hardware
Please feel free to share this project. In case of commercial purposes, get in touch with me (facebook, instagram, etc.)
- ESP32 version 1.0.6 from https://github.com/espressif/arduino-esp32/releases/tag/1.0.6
- ESP32 version 2.0.2 from https://github.com/espressif/arduino-esp32/releases/tag/2.0.2 Please be aware that other versions might be not supported.
- 7 voies polyphone
- 9 oscillators per voice
- 5 simple waveforms (+ noise)
- decay setting per oscillator
- organ like percussion
- main low pass filter with variable cutoff and resonance
- variable delay length (max. 250ms)
- variable feedback
- controllable mix
- controllable wet/dry
- very stable waveform display based on a convolution algorithm
- supports 128x64 pixel display
- midi can be provided via uart (a dedicated connector on a real PCB)
- midi via serial port (allow rerouting signal via computer)
- midi via USB with additional hardware (not tested)
- PCM5102a
- AC101
- ES8388
Feel free to let me know if you made something new based on this project If you have fixes, updates etc. you can generate a pull request