Midi To Bytebeat -
// The Bytebeat engine for (int t = 0; t < 44100*30; t++) char note = get_note(t); // MIDI note number (0-127) if (note == 0) output(0); continue;
This is not a "pure" bytebeat (a single line of logic), but it is accepted in the demoscene as a hybrid bytebeat track. The magic happens when you modulate the lookup table's index using bitwise operations. If you want a pure formula—a single line of C like main(t)t>>10)&63)); —you cannot directly convert an arbitrary MIDI. You must reverse engineer. midi to bytebeat
This script will create a song.c file containing a static array of pitches derived from your MIDI, wrapped in a minimal bytebeat player. Several hobbyist websites allow you to drag-and-drop a MIDI file and receive a JavaScript Bytebeat player snippet. These are excellent for beginners. Search "MIDI to Bytebeat Web Tool" (note: availability fluctuates as these are passion projects). Composing MIDI Specifically for Bytebeat Conversion If you want great midi to bytebeat results, you cannot compose like Beethoven. You must compose for the algorithm. Rule 1: Avoid Polyphony (Or Exploit It) 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. Rule 2: Embrace Quantization Errors Your MIDI note lengths will be brutally quantized to the sample rate. Short staccato notes may become 1-sample clicks. To avoid this, ensure your MIDI notes are at least 50ms long. Alternatively, use the clickiness as a percussion track. Rule 3: Pitch Bend and CC Messages Standard midi to bytebeat converters ignore Pitch Bend and Control Change messages. However, advanced converters map Pitch Bend to a frequency modulation parameter inside the formula. For example, (t * (note + bend)) & 255 . Rule 4: The Magic Key is >> and & 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. Advanced Hybrid Technique: The Trigger Formula The holy grail of midi to bytebeat is the "trigger formula." Instead of storing pitch, you store events . // The Bytebeat engine for (int t =
// Trigger formula generated from MIDI kicks and snares char events[1024] = 1,0,0,1,0,1,0,0; // derived from MIDI for (int t = 0; t < 44100*60; t++) int trigger = events[t % 1024]; // Bytebeat drum synthesis int kick = (t * (t>>13 & 1)) & 255; int snare = (t>>9 & t>>7) & 255; output( trigger ? kick : snare ); You must reverse engineer
In the left corner of the digital music universe, we have (Musical Instrument Digital Interface). It is the industry standard, the precise notation language born in the 1980s. It tells a synthesizer when to turn a note on, how hard to hit it, and when to let it go. It is logical, verbose, and structured.