Local audio draft
WAV to MIDI converter
A WAV to MIDI draft starts from an uncompressed recording: the detector follows one clear melody for the first 30 seconds and opens the estimated notes in the piano roll. The file is decoded on this device.
Audio never leaves this device. This rough draft follows one dominant melody from the first 30 seconds. Chords, drums, vocals inside a full mix, and polyphonic arrangements are not supported.
Choose a clear monophonic recording. The first 30 seconds become a rough melody draft in the piano roll.
Why a WAV is a good starting point
A WAV avoids the compression artifacts an MP3 adds, so pitch tracking has cleaner material to follow. Format alone does not separate instruments: a WAV to MIDI draft still needs one melody that dominates the recording.
Mono or centered sources work best. Trim the file so the useful phrase sits inside the analyzed window, and keep reverb, delay, and background noise low.
What the draft contains after 30 seconds
The draft holds estimated pitches, start times, note lengths, and velocity values for one voice at a time. It does not contain the original sound, and chords, drums, and dense mixes are outside this detector.
Only the first 30 seconds are analyzed. If the melody begins later, cut the phrase out before opening it here instead of uploading a longer recording.
Fix the draft, then export a .mid file
The result opens directly in the piano roll, where you can delete false notes, move octave slips, resize note endings, quantize to a grid, and even out velocity.
Export a standard MIDI file when the phrase reads correctly, then assign your own instrument in a DAW. The first automatic pass is a sketch, not a finished transcription.
Local processing, stated limits
Decoding and analysis run in this browser; the recording is not uploaded and no account is required. A decode failure is reported as an error instead of being forwarded to another service.
Use audio you are allowed to convert. Local processing changes where the work happens, not the rights attached to the recording.
Keep the same file
All EditMIDI tools
Every page runs on the same browser MIDI engine, so you can move between them without uploading or re-importing your file.
- MIDI editor online — edit notes, tracks, and velocity in the browser
- MIDI player online — preview tracks, scrub, and loop without uploading
- Transpose MIDI online — change key without losing tempo or controllers
- Change MIDI BPM online — replace a tempo map with one steady value
- Quantize MIDI online — snap note starts and ends to a musical grid
- MIDI velocity editor — set note dynamics from 1 to 127
- MP3 to MIDI converter — turn a melody into an editable piano roll
- Audio to MIDI — sketch one melody from a local recording
- Suno MIDI cleanup — quantize and fix messy AI exports
- MIDI to MP3 — render a MIDI file to WAV or MP3 in this browser
- Piano roll viewer — see every note, pitch, and length in a .mid file
- Vocal to MIDI — turn a hummed or sung line into editable notes
Broader transcription waitlist
The local result is a rough monophonic melody sketch, not a complete-song transcription. Join AI Credits if you want to hear when a broader workflow is good enough to charge for.