STM32F4_midi_synthesizer

messing around with audio synthesis on an STM32F4 disco board.

so far it can:

• provide a little command shell to talk to the device.
• animate onboard LEDs.
• take in midi signals from a 5pin midi connector.
• wavetable synthesis, sin, square, triangle waves.
• ADSR envelope.
• 4 voices sound okay. needs optimizing.

todo:

• optimization. too many float ops in the code. not necessary.
• midi knobs.
• filters.
• audio effects.