Capture a hummed idea
Hum or sing a melody into your phone, convert the clip and play it on any synth before the idea fades. A steady “oo” vowel gives steadier pitch.
Audio transcription
Audio to MIDI Converter
Turn a recording into editable MIDI notes. Choose your audio, review the transcription, and download a MIDI file to continue creating.
Processed in your browserAdd your audio01 / Audio
or drop an audio file here
MP3, WAV, FLAC or OGG · up to 50 MB · convert up to 60 seconds at a time
Note detection settings
Higher finds softer notes and more strays.
Raise it to remove short, glitchy notes.
Pitch rangeA0 – C8
Timing
Off by default, so notes keep the timing you played.
Written to the MIDI file and used for the grid. It is not detected from your audio.
No file handy?
Your audio is decoded and converted in this browser tab.
MIDI preview02 / Notes
Original audio
Your waveform and notes will appear here.
Choose a file or try the example clip.
0:00.0
MIDI preview plays the notes with a simple synth, not your original sound.
Step by step
How to Convert Audio to MIDI
Four steps take you from a recording to a MIDI file for any music app.
- 01
Choose a clear recording
Pick an MP3, WAV, FLAC or OGG file. One voice or instrument gives the cleanest notes; for a full song, separate the part you need first.
- 02
Select the passage
Drag across the waveform to mark up to 60 seconds. A short phrase converts faster and is easier to check.
- 03
Set the type and convert
Pick Voice, Piano, Guitar, Bass or Other to set a sensible pitch range and note filtering, then press Convert to MIDI.
- 04
Compare, clean up, download
Play the original and the MIDI preview, remove stray short or quiet notes, then download a standard .mid file.
What the converter does
Turn Audio Into Editable MIDI Notes
An AI audio to MIDI converter does not copy sound into a file. MIDI holds instructions: which pitch starts when, how long it lasts and how hard it is played. The model listens for pitched energy in your recording, estimates where each note begins and ends, and draws those events on a piano roll you can preview before downloading an editable MIDI file.
What carries over
Pitch, start time, length and an approximate velocity taken from loudness. Several notes can sound at once, so chords on a piano or guitar can be detected.
What stays behind
The instrument’s tone, the voice itself, lyrics, effects and room sound. Drums and other unpitched sounds are not turned into a beat pattern.
One track, not stems
A full song becomes one combined set of notes. It is not sorted into vocals, bass or keys, and no tracks are invented.
Better input, better notes
What Works Best — and What Needs Cleanup
Usually converts cleanly
- One instrument or one voice at a time
- A dry recording with little reverb or delay
- A steady level with no clipping or background hum
- A short phrase you can check by ear
Expect to tidy the result
- Full mixes with drums, bass and vocals together
- Low notes, where an overtone can be read as a higher pitch
- Notes that fade out and swell back in
- Vibrato, slides and bends, which become extra pitches
Extra notes usually come from overtones, a strong harmonic above the real note, or from a sustained note that dips and returns. Missing notes tend to be quiet, very short or buried under louder parts. A longer minimum note length and a quiet-note filter clear most strays; higher sensitivity helps when soft notes vanish.
Use WAV or FLAC when you can, since heavy MP3 compression adds artifacts. MP3 and OGG work too. M4A support depends on your browser; if a file will not open, export it as WAV.
Where it helps
Practical Uses for Your MIDI
Learn a part by ear
Turn a short guitar or piano phrase into notes, compare them with the original here, then loop the MIDI in your DAW to check voicings and rhythm.
Rebuild a lost part
If only a bounced audio file of your own part survives, convert it and correct the notes instead of replaying everything.
Layer and re-voice
Double a bassline with a synth or move a recorded melody to strings by playing the MIDI through a new instrument.
On your device
Local Processing and Privacy
Downloading this page and the note model is one kind of network traffic. Uploading your recording is another, and this converter does not do it.
- Downloaded
- The page and, on your first conversion, the note model and the code that runs it. These come from us to your browser and can be cached.
- Stays local
- Decoding, the waveform, note detection, the MIDI preview and the .mid file are all produced in your browser tab. Your recording is not uploaded or saved to your account, and removing the file releases it from memory.
- Your device
- Speed depends on your device. If the browser cannot run the model, the page says so instead of sending the file elsewhere.
Example
A Test Clip and Its MIDI
Example · synthetic test clip, not your audio
This six-second clip plays a five-note C major scale, a C major chord and a low A. Our test found all nine notes, plus two quiet overtones above the chord and bass. The cleanup sliders remove exactly those extras. Run it in the converter to get the same result on your own device. Real recordings are messier; this shows the workflow, not an accuracy score.
Questions
Audio to MIDI FAQ
Yes. MP3 and WAV are the main supported formats, and FLAC and OGG usually open too. M4A and AAC depend on the browser, so export to WAV if one will not load. Content matters more than format: a clean recording of one instrument beats a compressed full mix.
Yes. Choose Voice for humming or singing and Guitar for guitar. Hum on a steady vowel close to the microphone. For guitar, a direct or close-miked recording beats one captured across a room. Fast strums can blur into many short notes.
Chords played on one piano or guitar usually come through. A full song is harder: vocals, drums, bass and reverb overlap, and you get one combined set of notes, not separate instrument tracks. For a full mix, isolate the part with the Stem Splitter first.
Overtones can be read as notes an octave or more above the real one, a fading note can be split in two, and soft or very short notes can be missed. Raise the minimum note length or remove quiet notes to clear strays; raise sensitivity to catch soft notes.
No. MIDI stores notes, not sound. The preview plays them with a simple synth so you can check pitch and timing. In your music software the notes take on whatever instrument you assign.
No. Your browser downloads the note model and runs the conversion locally, so the recording stays on your device and is not saved to your account. Any future cloud option would be a separate choice that explains what is sent before anything leaves your device.
Yes. The download is a standard one-track MIDI file. Drag it into Ableton Live, FL Studio, Logic Pro, Reaper or a notation app to edit, quantize or change instruments. The file uses 120 BPM unless you enter your own tempo; notes keep their original timing either way.
Try a shorter section first, close other heavy tabs, update your browser, and export the audio as WAV if it will not decode. A computer is often faster than an older phone. The page never uploads your file as a fallback.
Files can be up to 50 MB and 10 minutes long, and each conversion handles up to 60 seconds. For a longer recording, convert it in parts: select the next section and press Convert again. Shorter sections finish faster, especially on phones, and are easier to compare with the original.
Turn Your Next Recording Into Notes
Choose a short, clear section, compare it with the MIDI preview, and download notes you can edit.
Convert Audio to MIDI