Conversor de MP3 a MIDI

Cómo funciona y límites

This is automatic music transcription, not a format swap: an MP3 stores a waveform, a MIDI file stores note instructions. The approach here is monophonic pitch tracking — your audio is decoded with the Web Audio API, the fundamental pitch is tracked frame by frame by autocorrelation, agreeing frames are grouped into notes, and a Standard MIDI File (480 ticks per quarter note) is written for download. The research leader is Spotify's Basic Pitch (checked live 9 Nov 2026), a machine-learning model that also hears chords; this lighter page hears one note at a time, so use a solo instrument or sung melody, keep clips short, and expect to clean the result up in your DAW — delete very short notes, fix octave errors, quantise gently. Full mixes and drums will not transcribe well on any tool; no accuracy figure is promised.