The most direct method is to write a small C++ program that:
Sample Pseudo-code for a Bytebeat generator from MIDI: midi to bytebeat
for (int t = 0; t < total_samples; t++)
double time_sec = t / 44100.0;
update_midi_events(time_sec); // Checks noteOn/Off
float mix = 0;
for (auto ¬e : active_notes)
double freq = 440.0 * pow(2.0, (note.pitch - 69)/12.0);
mix += sin(2 * M_PI * freq * time_sec);
mix /= active_notes.size(); // Normalize
output_byte = (unsigned char)((mix + 1.0) * 127.5);
printf("%c", output_byte); // Raw bytebeat stream
Bytebeat is inherently monophonic (one note at a time) unless you add channels using bit masking ((formula1 & 0xFF) | (formula2 << 8)). When converting MIDI, convert one track at a time. Use chords only as arpeggios. The most direct method is to write a small C++ program that:
When reviewing your converted code, manually edit the logic to add bit-shifts. A static lookup table is boring. Change:
output[ t ] to output[ t >> 3 ] to slow the melody by 8x and drop it into bass territory. Change & 63 to restrict the octave range. Sample Pseudo-code for a Bytebeat generator from MIDI: