メロディーをMIDIへ
短い録音から音符を見つけて、いつもの音楽アプリへ。
Choose a short recording
One instrument or melody. 0.5–60 seconds · up to 50 MiB.
WAV / MP3. Other audio formats depend on your browser.
Or record a melody
Microphone access starts only when you press Record. Up to 59 seconds.
Microphone access from a local HTML file depends on your browser. If unavailable, open the HTTPS app or choose an audio file.
Listen before analyzing. Recording does not start analysis automatically.
Save original recording (optional)
Note detection
Settings apply when you press Analyze audio. Changing them never starts analysis automatically.
Advanced detection settings
Your audio stays on this device. The model is included in this HTML.
See and compare the notes
Compare the original recording with a simple synthesized preview. Notes are read-only in this version.
Choose an audio file to see its waveform.
Scroll the note area to move in time or pitch. Tap a note or choose one below.
Edit notes
C4 = MIDI 60 · C−1–G9 / 0–127
Use Apply for typed values. The −/+ buttons change the selected note immediately. Overlapping notes are allowed.
Only neighboring notes of the same pitch, without overlap and with a gap of at most 0.05 s, can be merged.
Clean up notes
0.01–2 s
Preview removal across all current notes before applying.
Off by default. Adjust all current notes to a seconds grid; tempo is not estimated. Invalid changes are skipped.
0.01–1 s
Review changes
| Change | Before | After |
|---|
Save the detected notes
Transcription is an estimate. Check the MIDI in your music app.
MIDI contains notes, not audio. Fixed 120 BPM and velocity 96; tempo and loudness are not estimated.