Solo voice
A dry, exposed guide vocal gives Flex Pitch distinct note regions to edit.
Logic Pro for Mac 12.3 · Flex Pitch first
Logic Pro Audio to MIDI: Flex Pitch Steps
Create an instrument track from a clean monophonic audio region.
Learn more
Apple's Logic Pro for Mac 12.3 guide documents this flow: turn on Flex Pitch in the Audio Track Editor, correct the detected pitch regions, then create a MIDI track from Flex Pitch data. It works best for a single pitched line; dense chords can produce interpretation errors.
What does this audio contain?
Choose the option that best matches what you hear.
Choose a supported file, then convert it to an editable MIDI draft.
Choose the audio type above first
Free preview: up to 25.0 MB. Full conversion after sign-in: up to 25.0 MB.
Choose what you want to convert
Formats: MP3 / WAV / M4A / FLAC / OGG / WEBM / AAC. Max 25.0 MB.
Native Flex Pitch steps first
- 01
Open the audio region
Double-click a vocal or solo-instrument audio region in the Tracks area to open the Audio Track Editor. Start with a monophonic take rather than a full mix.
- 02
Enable Flex Pitch
Click Show/Hide Flex in the Audio Track Editor, then choose Flex Pitch from its Flex Mode menu. Correct missing or mis-pitched regions before creating MIDI.
- 03
Create the MIDI track
In the Audio Track Editor menu bar, choose Edit > Create MIDI Track from Flex Pitch Data. Logic adds an instrument track with MIDI regions below the source audio track.
- 04
Compare and edit
Play MIDI with the original audio, then adjust pitches, note boundaries and velocity in Piano Roll. If you need an independent draft, export authorized audio, inspect a PureMIDI result, and import its .mid for comparison.
What Flex Pitch can handle
Single-note instrument
A bass or lead line can become an instrument double after you correct the note boundaries.
Chords and mixed songs
Apple warns that polyphonic material may lead to errors. Isolate a part or use a separate full-song transcription draft.
Score or instrument doubling
The created MIDI region can be opened in Piano Roll or Score Editor, and assigned a Library patch.
Review the MIDI regions
- Fix Flex Pitch regions before using the Create MIDI Track command; then review the generated MIDI again.
- A new MIDI region for each audio region does not mean the pitches or rhythm are correct.
- These menu paths follow Apple's Logic Pro for Mac 12.3 guide; older menu layouts can differ.
When to compare an external result
For a difficult take, export the relevant audio region and compare a second transcription against Flex Pitch. Align both at the same project tempo before deciding which notes to keep. Do not merge two drafts without listening to the original.
Core audio to MIDI paths
Choose the conversion path that matches your source. These pages separate general audio, compressed MP3, YouTube/YT workflows, and local MP4/video files so each search intent has one clear owner.
AI audio to MIDI converter
Best default for WAV, M4A, FLAC, recordings, stems, and authorized audio exported from video.
MP3 to MIDI converter
Use the MP3-specific page when your source is compressed MP3 and you need bitrate or retry guidance.
YouTube to MIDI workflow
Preview a link, confirm rights, then upload audio you own or are licensed to use for MIDI conversion.
MP4 / Video to MIDI converter
Upload a local MP4, MOV, WebM, or M4V and convert its audio track directly to MIDI.
Logic Pro audio-to-MIDI questions
Which menu creates MIDI?+
In the Audio Track Editor with Flex Pitch enabled, use Edit > Create MIDI Track from Flex Pitch Data.
Does Flex Pitch transcribe chords reliably?+
Apple recommends monophonic material and warns that chords or polyphonic sources can be misinterpreted.
Where does the MIDI appear?+
Logic adds an instrument track below the audio track with MIDI regions corresponding to the source regions.
Should I edit before or after conversion?+
Correct the Flex Pitch regions first, then compare the generated MIDI with the source and edit Piano Roll notes as needed.