ALSA synth with a WebMIDI UI.
The internals of the synth are easily hackable. The design is standalone audio modules wired together in a DAG, with a central controller to make updates in response to MIDI messages.
Install ALSA dev libs:
apt install libasound2-dev
RxCpp 4.x is required. Follow the instructions here to install it. Increasing system virtual memory may be required when compiling RxCpp on a raspi.
make
Start synth, connect midi:
# See audio output devices with `aplay -l`
./z-synth --device hw:0,0
# See midi input devices with `aconnect -i`
aconnect 16:0 z-synth:0
Google Test 1.x is required. Follow the instructions here to install it.
make z-synth-test && ./z-synth-test