TeensyMix synth is an 8-voice polyphonic synthesizer based on the Teensy 4.1 development board. It is designed to be an easy build with just an LCD display and a digital to analog converter. An Akai MIDImix is used to control the synthesizer. The MIDImix is a compact and affordable MIDI based mixing controller with 24 dials, 9 sliders and 19 buttons with LEDs.
All sound parameters of the synthesizer can be controlled directly using these dials, sliders and buttons. No complicated menus and pages of parameters to scroll through!
See and listen to what it looks and sounds like!
Features:
- 8-voices with sawtooth, square, sine, triangle, sample & hold noise and several sampled waveforms
- 2 oscillators per voice, one with waveform shape modulation, one with frequency modulation (FM)
- Oscillator 1 supports unison detune with a total of 7 stereo panned oscillators with adjustable detune and mix levels
- 2 12db filters, individually controllable, one with adjustable resonance, allows various combinations of low-pass and high-pass
- 2 envelope generators, one for amplitude, one for modulating the filter, shape, etc
- 1 LFO for modulating the frequency, filter, shape, etc
- Per voice wavefolder for manipulating the waveform
- Per voice waveshaper for distortion
- Stereo ensemble chorus
- Stereo audio using a 24 bit digital to analog converter
- MIDI over USB
- Optional: (5 pin DIN) serial MIDI
The components mentioned in the "Things used in this project" section above are what is needed to get this working on a breadboard. For a full build you would need a case and some additional components.
Schematics, source code and additionaly instructions are available on GitHub:
https://github.com/phjanderson/TeensyMixSynth
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