Audio-to-MIDI now runs inside your DAW

Mirelo Audio-to-MIDI is a VST3 and AU plugin that converts audio to MIDI inside Ableton Live, FL Studio and other VST3 DAWs on macOS and Windows, and inside Logic Pro and GarageBand on macOS. Put it on an audio track, drop in a file or record the track, and it transcribes the full mix with Audio-to-MIDI Pro, giving you a separate MIDI file for every instrument it hears to drag straight into your project. It uses the same Mirelo account and credits as Mirelo Studio.

Until now, getting MIDI out of a track with Audio-to-MIDI meant bouncing the audio, uploading it to Mirelo Studio, downloading the MIDI and dragging it back into your session. If you have done that loop a few times in one evening, you know how quickly it pulls you out of the music. The plugin does the whole job from the track you are already working on.

What does the Audio-to-MIDI VST plugin do?

The plugin brings transcription, the core of Audio-to-MIDI, into your DAW:

• Takes audio from a file or the track - drop in an audio file, or record what is playing on the track without exporting it first
• Suggests the instruments - it listens before it transcribes and tells you which instruments it hears, and you can keep them, change them or skip instrument guidance
• Transcribes the full mix - no stems needed, with chords and several instruments playing at once
• Lets you check it against the original - play the MIDI inside the plugin, slide between the original and the MIDI, and play every part together or solo one at a time
• Gives you a MIDI file for every part - drag all parts in as one MIDI file, or each instrument on its own

How do you convert audio to MIDI in Ableton Live, FL Studio or Logic Pro?

1. Add the plugin to an audio track - put Mirelo Audio-to-MIDI on the track you want to convert and sign in with your Mirelo account
2. Drop a file or record the track - drag an audio file onto the plugin, or press Record from DAW and play it. Recording runs in real time, so a four-minute song takes four minutes to capture
3. Pick the instruments - keep the suggestions, choose your own, or transcribe with no guidance. Turn on Align notes to beats if you want the notes on the grid
4. Drag the MIDI into your project - drop each part onto a MIDI track and load an instrument on it to hear it

On macOS the installer adds both the AU and the VST3 version, and on Windows it adds the VST3. Use the AU version in Logic Pro and GarageBand, and the VST3 version in every other DAW.

The steps are the same in any VST3 or AU DAW. A MIDI file lands on a track with no instrument, so if a part plays back silent, that is the first thing to check.

What can producers and musicians use it for?

Keep producing from a finished track

Pull the parts out of a finished mix and keep working on them as MIDI in your session. Change a chord you never liked, move the bass line, or rebuild the arrangement around a part you want to keep.

Recreate a recording with new sounds

Take an old recording, a rare one you have permission to use, or one of your own, and rebuild it with new instruments. Every note is editable, so the new version can stay close to the original or go somewhere else entirely.

Flip a sample or loop into something playable

Turn a loop into MIDI, then change the notes, rearrange the phrase or play it through a different sound. The original loop, the extracted MIDI and your flip can all sit next to each other in the same project.

Finish an AI-generated song in your DAW

If you generated a song with AI and only half of it works, turn it into MIDI for every instrument and rebuild it with your own sounds. Fix the parts that fall flat, keep the ones that do not, and make the track yours.

Hum, sing or play an idea and get it back as MIDI

Record a melody, riff or bass line on a track and get it back as MIDI, so you can play the idea with any sound.

Which DAWs and systems does it work with?

Plugin or Mirelo Studio: which should you use?

Both run on the same Audio-to-MIDI model and use credits from the same Mirelo account.

Use the plugin when you are producing in your DAW:

• Take audio from a file or record it straight from the track
• Get one MIDI file per instrument, plus one with every part
• Pay the API rate, half the Studio rate per second of audio

Use Studio when you need more than MIDI:

• Upload an audio or video file
• Get MusicXML, PDF scores, and guitar and bass tabs where supported
• Get timed lyrics under the vocal notes

For a full walkthrough of Audio-to-MIDI in Studio, read How to convert audio to MIDI, and for the model behind both, read Introducing Audio-to-MIDI Pro.

Frequently asked questions

Is the Audio-to-MIDI plugin free?

The plugin is free to download. Transcription uses credits from your Mirelo account at 2.5 credits per second of audio, and the free plan's 5,000 credits a month cover about 33 minutes.

Does the plugin work in Logic Pro or Pro Tools?

It works in Logic Pro and GarageBand through the Audio Units (AU) version on macOS. Pro Tools is not supported yet, since it needs AAX plugins.

Can it convert a full song to MIDI?

Yes. You do not need to separate stems first: the plugin picks out the instruments playing at the same time and returns each one as its own MIDI file, plus one file with every part.

Which instruments can it transcribe?

It picks out the instruments it hears in a full mix, such as piano, guitar, bass, drums and vocals, and gives each one its own MIDI file. Before it transcribes, the plugin shows you the instruments it found, so you can keep them, pick your own or let the model decide.

How accurate is the MIDI?

It depends on the recording. Clear parts in a clean mix come out closer to the original than dense, heavily processed audio, which is why you can play every part against the original before you drag it in, and fix any note in your DAW's piano roll afterwards.

Does it need an internet connection?

Yes. Transcription runs on Mirelo's servers, so the plugin uploads your audio and sends the MIDI back to your DAW.

How long can the audio be?

Up to 30 minutes per transcription, which covers a full-length song in one go.