A bass line
Capture a monophonic bass phrase and audition it with a different instrument.
REAPER · ReaTune pitch events
REAPER Audio to MIDI: ReaTune Recording Steps
Capture MIDI events from one pitched source, then edit the recorded item.
Learn more
Cockos documents ReaTune's Send MIDI event when pitch changes option in the ReaEffects guide. It emits pitch-change events from a track; this is a monophonic pitch route, not a full-song stem separator. Record the routed output on another track and inspect the MIDI item.
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.
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Native ReaTune steps first
- 01
Prepare a single pitched source
Put a clean vocal, bass or lead audio item on a REAPER track. Avoid chords and mixed drums; ReaTune follows one detected pitch at a time.
- 02
Enable ReaTune MIDI output
Add ReaTune as an FX on the source track. In ReaTune, enable Send MIDI event when pitch changes. The ReaEffects guide identifies this exact control.
- 03
Route and record the events
Send the source track's MIDI output to a new receiving track, arm that track for MIDI output recording, then play the source. Confirm MIDI notes were captured; the exact routing controls can vary with your REAPER version and track setup.
- 04
Edit or compare a second draft
Open the recorded MIDI item and fix starts, ends and stray pitches. For a difficult source or multi-part material, export authorized audio and compare a separate PureMIDI .mid in the project.
Where ReaTune fits
A vocal guide
Record pitch-change events from an exposed melody, then repair vibrato-induced extra notes.
Real-time triggering
The same option can drive a virtual instrument while audio is processed.
Chords or full arrangements
Use a different transcription approach when multiple simultaneous notes or instruments matter.
Listen to the recorded item
- ReaTune's option sends MIDI when detected pitch changes; it does not guarantee useful note lengths for every performance.
- Vibrato, slides and noise can create extra events. Edit the captured MIDI item against the original audio.
- The Cockos ReaEffects Guide describes the ReaTune control without a numbered REAPER release; confirm routing details in your installed version.
Recording the routed MIDI
Use a separate receiving track so you can keep the source audio and the captured MIDI side by side. Monitor the receiving track during playback, then stop and inspect the item. If no notes arrive, check that the send carries MIDI and that the destination is recording its output rather than audio input.
REAPER audio-to-MIDI questions
What does Send MIDI event when pitch changes do?+
ReaTune emits MIDI event messages as its detected pitch changes. You must route or record those events to keep an editable MIDI item.
Can this separate a full song?+
No. This ReaTune method follows one pitch source; it does not separate vocals, drums and instruments.
Why are there too many notes?+
Pitch fluctuations can trigger additional events. Clean the source where possible and edit the recorded MIDI boundaries.
Where should I record the notes?+
Route MIDI to a separate receiving track, record its output and retain the original audio for comparison.