MIDI from audio using Flex Pitch in Logic Pro for Mac
You can create MIDI regions from audio regions in an audio track with Flex Pitch activated. This “audio-to-MIDI” capability can be used to double the audio regions using a different instrument or different effects, to modify the sound of the original audio recording, to notate the music, and for other purposes.
Creating MIDI regions from an audio recording works best with monophonic material; chords or polyphonic material may lead to errors in interpretation. Before creating the MIDI regions, it’s a good idea to make any needed corrections to the audio after enabling Flex. This could include timing corrections, missing or incorrectly pitched notes, and other corrections. After creating the MIDI regions, you can make further corrections and changes to the MIDI notes.
When you use the Create MIDI Track from Flex Pitch Data command, a MIDI region is created for each audio region on the audio track.
Create MIDI regions from audio regions using Flex Pitch
In Logic Pro, double-click the audio region in the Tracks area to open the Audio Track Editor.
Click the Show/Hide Flex button
in the Audio Track Editor menu bar.Choose Flex Pitch from the Flex Mode pop-up menu in the Audio Track Editor menu bar.
After making any needed corrections, choose Edit > Create MIDI Track from Flex Pitch Data in the Audio Track Editor menu bar.
A new instrument track appears in the Tracks area below the audio track, containing MIDI regions created from the Flex Pitch data of the regions on the audio track.
Choose a patch for the new track from the Library.
After creating a new MIDI region, you may want to play it together with the original audio recording to hear any inaccuracies, then make corrections to MIDI notes, adjust their velocity, quantize the region, or perform other edits in the Piano Roll Editor. You can also open the region in the Score Editor to view MIDI notes as music notation.