WAV to MIDI
This WAV to MIDI converter takes bounces, stems and session files, straight from your DAW. A 30 MB upload holds about 3 minutes of CD-quality stereo WAV. For anything longer, bounce the section you need or upload it as FLAC or MP3.
Turn stems, samples and WAV files into MIDI
You have the part as audio and you want it as notes. Upload a WAV bounce, a stem, a loop or a sample, or record a take right here. The converter writes out what it hears, shows it on a piano roll, and gives you a .mid to put on any instrument in your DAW. Most files take about a minute.
How it works
From a bounce to MIDI in three steps
1Step 1
Export the part as audio
Solo what you want in your session and bounce it to a WAV, or grab the stem, loop or sample you already have. MP3, M4A, OGG and FLAC work too, up to 30 MB and 10 minutes. You can also record up to 5 minutes from your microphone.
2Step 2
AI writes out the notes
A neural network listens for the pitches sounding at each moment, several at a time, and turns them into notes with a start, a length and a strength. It works from what it hears, so the cleaner the part, the cleaner the notes.
3Step 3
Check it, then drag it into your DAW
Play the result on the piano roll and compare it with your audio. Download the .mid, drop it on an instrument track and pick a sound. From there you can fix, transpose and quantize every note.
What you get
Get the part out of the audio and back into your session
What changes once a part is notes instead of sound, and what to expect on the way.
Swap the sound, keep the part
Put a bounced synth line on a different synth, double a riff with strings, or replace a sound you can't get back. The audio becomes pitch, timing and strength data, so any instrument in your DAW can play it.
Chords as well as single lines
The converter follows several notes at once, so a pad, a piano part or a strummed guitar comes through as stacked notes. Play them on the built-in piano roll and hear how close they are before you download.
WAV to MIDI, straight from your DAW
Upload the WAV as you bounced it, with no conversion first. WAV and FLAC lose nothing to compression, and MP3, M4A and OGG are accepted too. The limit is 30 MB, which is about 3 minutes of CD-quality stereo WAV.
A .mid for any DAW
Download a standard MIDI file for Ableton Live, FL Studio, Logic Pro, Cubase, Reaper or GarageBand. It's written at 120 BPM whatever the tempo of your audio, so stretch the clip to fit a session at another tempo.
No bounce yet? Record a take
Sing, hum or play into your microphone for up to 5 minutes and convert the take in the same tool. A voice memo from your phone works as an upload too.
One file, one MIDI track
Everything the AI hears lands on one track. A full mix comes out as one dense part, vocals included, and drums don't come out as a drum part. For separate parts, convert one stem at a time.
By source
What are you converting?
The converter takes any audio file, but what comes out depends on what's in it. Here's what to expect from each, and when another tool here does it better.
Stem to MIDI
The best input there is: one instrument with nothing else playing. Solo it in your session, or split a finished track and convert the stem you want.
Split a track into stemsSample to MIDI
Melodic loops and chopped phrases convert well. A one-shot gives you a single note, and drum loops don't come out as a drum part.
M4A, OGG or FLAC to MIDI
M4A to MIDI, OGG to MIDI and FLAC to MIDI all run on the same converter at the same price. Upload the file as it is, with no need to convert first.
MP3 to MIDI
Starting from a song or demo you only have as an MP3? That page covers what to expect from a full mix.
Open MP3 to MIDIVoice to MIDI
For singing or humming, Vocals to MIDI keeps one note at a time, and can pull a singer out of a full song.
Open Vocals to MIDIPiano to MIDI
A piano-specific model that also captures how hard each note was played and where the sustain pedal goes down.
Open Piano to MIDIGuitar to MIDI
Writes bends as pitch bend, and can pull the guitar out of a full song before it converts.
Open Guitar to MIDINo DAW handy?
Open the .mid in the browser to fix notes and change instruments, without installing anything.
Open MIDI EditorWho it's for
For people who already work in a DAW
When the part you want is stuck in an audio file and playing it back in by hand isn't the plan.
01
Producers changing a sound
You like the line but not the sound. Turn the bounce into MIDI, fix the odd note and try it on every synth you own.
02
Remixers & beatmakers
Get the notes out of a loop or a stem so you can re-voice it, change its key or double it with a synth.
03
Songwriters keeping an idea
Turn a hummed hook or a rough take into notes on a grid, then build the arrangement around it.
04
Arrangers writing parts
Start a part from a stem instead of a blank page: convert it, clean it up and take it into your notation software.
FAQ
Audio to MIDI, answered
Upload your audio to the converter above and hit Convert to MIDI. The AI transcribes the notes and builds the file, with no note entry on your part. Check it on the piano roll, then download the .mid and drag it onto an instrument track. WAV, MP3, M4A, OGG and FLAC all work the same way, and you can record from your microphone instead.
Bounce the part to a WAV, upload it above and hit Convert to MIDI. There's nothing to set first. Uploads can be up to 30 MB, which is about 3 minutes of CD-quality stereo WAV, or twice that in mono. If your file is bigger, upload a shorter section, or save it as FLAC or MP3 so more of it fits.
It's free to start. A free account comes with 120 credits every month and each conversion uses 25, so that's four conversions a month with no credit card. You can download the .mid, MP3 and WAV on the free plan. For more conversions, paid plans and credit packs add credits.
Yes, to convert your own audio. The conversion runs on our servers and your files stay in your history, so uploading needs a free account. There's nothing to install. You can play the examples and open their MIDI on the piano roll without signing in.
Yes, that's what this tool does. A neural network estimates which pitches are sounding at each moment, including several at once, and groups them into notes with a start, a length and a strength. It estimates rather than reads, so expect to fix some notes.
The one that fits your source. What decides the result is the audio going in: one clean instrument converts far better than a full mix in any tool. For a single part, look for a converter that lets you check the notes before you download, like this one. For piano, vocals or guitar, a converter tuned to that source does better: see Piano to MIDI, Vocals to MIDI and Guitar to MIDI.
Yes, and if yours has the command, try it first. Ableton Live has Convert Harmony, Melody and Drums to New MIDI Track. Logic Pro can create a MIDI track from Flex Pitch data, though Apple's manual says that suits monophonic material best. This converter helps when your DAW has no such command, when you want chords tracked in Logic, or when you want to check the notes before anything goes into your session.
No. It runs in your browser, there's nothing to install, and you get a .mid file to drag into your session. It doesn't sit in your DAW's plugin chain or convert in real time, so if you want to play a synth live from your voice or guitar, you're looking for a plugin.
The file is written at 120 BPM whatever the tempo of your audio. The notes keep their real timing, so in a 120 BPM session they play back in time with your audio. In a session at another tempo, stretch the clip by your BPM ÷ 120: at 90 BPM, that's 0.75 times its length. Quantize after that.
It's most accurate on one clear part: a bass line, a lead synth, a piano, a solo vocal. Dense mixes, heavy layering and drums are harder. Pitches usually come through; note starts, lengths and strengths need the most cleanup. To help it along, bounce the part dry if you can, because reverb and delay smear the ends of notes and distortion adds overtones the AI can mistake for notes. You can judge it before signing in: the examples above are unedited conversions.
Slides and vibrato in the audio are written as pitch bend, so a note can glide the way the original did. If that sounds wrong on your instrument, clear the pitch bend data in your DAW's piano roll. The notes stay where they are.
Yes, if it's melodic. A loop or a chopped phrase comes out as notes you can re-voice or move to another key, while a one-shot gives you a single note. MIDI made from someone else's record still carries their melody, so check the rights before you release it.
Not in a useful way. This converter listens for pitch, so a drum loop comes out as scattered notes, not kick, snare and hat on the right keys. If you use Ableton Live, its Convert Drums to New MIDI Track command is built for this.
You can upload one, but it comes out as one dense track, with the chords, riffs and vocal line together. MP3 to MIDI covers what to expect from a full song. If you want one part, split the song with the Stem Splitter and convert that stem.
WAV, MP3, M4A, OGG and FLAC, up to 30 MB and 10 minutes. Recordings can run up to 5 minutes. Most files finish in about a minute, longer for long files. The conversion runs on our servers, so you can switch tabs while it works and find the result in your history.
Get the part out of the audio
Upload a WAV, stem or sample, or record a take, check the notes on the piano roll and download the .mid. Free to start.