Record a hummed idea without leaving the page
Press Record a melody and allow microphone access when your browser asks. Hum one phrase, then press Stop recording. Recording stops automatically after 60 seconds. Cancel recording discards the take and releases the microphone; leaving the page also stops recording.
If access is denied or recording is unavailable, use a voice memo from your phone instead. Save it as an audio file and choose it here. Microphone permission is only needed for recording on this page, not for converting an existing file.
Check the phrase before converting
Use the waveform to locate your melody, then set Start and End in seconds. Listen to selection before converting. Keep the start of the first note and the end of the last note inside the range. Use full recording restores the whole take if you cut too much.
The selection does not remove gaps between notes. Those pauses may be part of your rhythm. MIDI note times are measured from the start of your selection: a note at 13 seconds in a selection starting at 12 seconds appears at about one second. The MIDI may end before the selection does if there is silence after the last detected note.
Listen, adjust, and try the same take again
Compare Original audio and Raw MIDI after conversion. Both refer to the same selected phrase. Listen for the shape of the melody and repeated notes before fixing every small difference. The synthesized preview uses a simple instrument sound; it does not reproduce your voice.
Choose Adjust & re-convert if notes are missing or there are too many extra notes. Your recording stays loaded, and the settings are available again. Lower Note confidence slightly for a quiet phrase; raise it for unwanted background pitches. If short notes disappear, reduce Min note length. Change one setting at a time so you can hear what helped.
Turn a phone melody into a sheet-music draft
After converting, compare Original audio with Raw MIDI. Open Edit individual notes to correct a pitch or remove an extra note, then use Preview sheet music to inspect the current result. You can edit and preview before unlocking an export. Raw MIDI remains the original transcription; it does not include your edits.
In Adjust range, pitch & timing, set Tempo (BPM) to match your phrase before applying a timing grid. Start with Keep current timing if you want to preserve the performance. Under Score settings & limitations, choose the Time signature; Bar offset moves the notes relative to the bar lines. Changing the time signature does not fix wrong pitches or detect the rhythm for you.
The score is a draft at a fixed tempo on a sixteenth-note grid. Check repeated notes, rests and bar lines against your recording. Slides, tuplets and tempo changes are not reliably represented. A short, steady, unaccompanied phrase is a more useful starting point than a full song or a free-time performance.
Download Raw MIDI for free if you want to continue in another editor. To export the current edits and score here, buy this project’s pack without an account for US$2.99, or sign in and use 50 credits (older and welcome credits retain their original export value). Its export pack includes Edited MIDI, a PDF score and MusicXML for further notation editing. Later edits and repeat downloads of that unlocked project use no additional credits; keep the project saved if you want to return to it.