cairo-wave

About

Generate valid WAV files in Cairo

Features

• [x] Output WAV file
• [x] Handle bit-depths (4, 8, 16, 32)
• [ ] Handle multiple/stereo channels
• [x] Generate square wave form
• [x] Generate sawtooth wave forms
• [x] Generate triangle wave forms
• [ ] Generate sine wave forms
• [ ] Generate an instrument (see Koji)
• [x] Play Koji notes
• [ ] Play Koji midi tracks
• [ ] Generate an 4/8-bit low sample rate sound pack (kick, bass, snare, hi-hat)
• [X] Play short melodies

Local testing:

scarb test -f get_notes > tmp/test
python scripts/data_to_wave.py tmp/test
mplayer tmp/test.wav

Sepolia testing

Needs a working starkli configured with a Sepolia RPC

python scripts/get_notes.py
mplayer tmp/out.wav

Resources

• WAVE PCM File format
• Unix: man sox, ffprobe file.wave
• WAV Header
• decode header
• generate 8-bit pytho gist
• https://aminet.net/
• sound pack + player
• gameboy 4-bit depth
• http://www.hydrogen18.com/blog/joys-of-writing-a-wav-file.html