Audio to MIDI Converter

Any common audio format in — clean MIDI out. WAV, FLAC, OGG and M4A are transcribed by the same tuned engine as our MP3 tool, with MusicXML and a sheet preview included.

WAV · FLAC · OGG · M4AMIDI + MusicXML outputGhost-note filteringFree 5/day

Lossless in, better notes out

Feeding the transcriber a lossless WAV or FLAC gives it cleaner spectra than a compressed MP3 — onsets are sharper and quiet notes survive. If you recorded the audio yourself, upload the original file rather than an MP3 export. Everything else works identically to our MP3 to MIDI converter: tuned thresholds, harmonic-ghost filtering, and honest metrics on every job.

Frequently asked questions

Which audio formats are supported?
MP3, WAV, FLAC, OGG and M4A/AAC, up to 8 minutes per file. For best accuracy upload the highest-quality version you have.
How accurate is the transcription?
Our tuned engine scores 0.97 F1 on melodies and 0.91 on polyphonic chords in closed-loop benchmarks — including a harmonic-ghost filter that removes the phantom octave notes plaguing raw AI transcription. Clean solo-instrument recordings transcribe best; dense full-band mixes are genuinely hard for any tool, so expect a starting point to edit rather than a perfect score.
Is it free?
Converting and previewing are free — 5 jobs a day, files up to 40 MB, no account. You can play the result in the browser, follow the highlighted score, and solo each part. Credits ($9 for 20, $19 for 50) unlock downloads: 10 credits for a piece's MusicXML + MIDI, 20 for the full Rehearsal Pack with per-part practice MP3s and slow mixes.
What happens to my files?
Uploads are used only to run your job and stored briefly so you can download results. We don't share them or train on them. See our privacy policy.