laurent-latorre / synthol

STM32F4 based Virtual Analog Synth

Synthol

STM32F4 based Monophonic Virtual Analog Synth

Summary of implemented features :

• 2 oscillators based on wavetables with 24 overtone (square, triangle, sawtooth, sine)
• OSC1 & OSC2 can be switched over 3 octaves
• OSC2 detune
• Noise generator based on STM32 RNG
• MOOG-like low-pass filter with resonance
• 2 LFO's (here mapped to pitch and filter cutoff)
• 2 ADSR enveloppe generators (here mapped to VCA and filter cutoff)
• Switchable Ring Modulation (OSC2 -> OSC1)
• Pitch-bend
• MOD wheel mapped to filter resonance

Code is provided as is it with no support (sorry, I'm too busy).

I apologize for my very poor coding skills, I'm not a software developper, more on the hardware side of things...

I'm sure you can improve things a lot...

Built OK with CoIDE 1.7.5 (enable hardware FPU) and GNU Tools ARM Embedded\4.6 2012q2 toolchain

You'll need a MIDI master kayboard to send note & CC events to hear something and play with parameters. You'll also need a litte bit of harware to wire MIDI signals into USART3.

See midi.c file to find out MIDI implementation (sorry, no documentation, but it's quite easy to understand)

For demo, see : https://www.youtube.com/watch?v=SS7UrrUPdn0

Good Luck !

Laurent.

synthol's Issues

License

Hi,

and thank you for your code. I'd like to use your code in my own project. Under what license is your code published? Or is it public domain?

Jani

Info of MIDI <-> USART3

Hello Laurent,

Could you help provide a bit more information about your hardware of wiring between MIDI signals and USART3? It would be even better to get a complete hardware setup of your project. Thank you.

CHEERS,
Ethan