Turn a clear MP3 melody, vocal line, bass part, or solo instrument into editable MIDI notes, preview the result, and export a .mid file.
Drop a clear MP3 melody here, or import from:
An MP3 to MIDI converter analyzes the musical pitches and timing in an MP3 recording and writes the detected melody as editable MIDI note events.
MP3 and MIDI are fundamentally different: MP3 stores compressed recorded sound, while MIDI stores note instructions that trigger a sound in a DAW, notation app, or instrument.
Start with an .mp3 file containing a clear vocal, bass, whistle, or solo instrument melody.
Review pitch, start time, duration, and velocity instead of receiving another fixed audio waveform.
Quantize the detected phrase, transpose it by semitones, and set the tempo before export.
Listen to the detected notes with a selected instrument and create a standard .mid file.
Use an MP3 with one clear note at a time for a cleaner MIDI draft.
Choose a solo melody, vocal phrase, bass line, whistle, or single-note instrument recording in MP3 format.
Match the detail setting to the clarity and level of the MP3 recording.
Inspect the piano roll and note list for false notes, unstable pitches, and timing that needs correction.
Set tempo, quantize, transpose, preview the notes, and export the final .mid file.
MP3 compression does not prevent note detection, but the content and quality of the recording matter.
A vocal melody, bass line, whistle, or lead instrument is more reliable than a mastered song with chords and percussion.
Very low-bitrate MP3 files can blur note attacks and add artifacts that create shorter or less stable detected notes.
Echoes, harmony, drums, and accompaniment introduce overlapping frequencies that a monophonic detector may interpret as extra notes.
Preview and correct the MIDI in the page or a DAW rather than expecting a compressed recording to become a perfect score automatically.
Convert MP3 when an existing compressed recording contains a musical idea you want to edit as notes.
Turn a phone recording or shared MP3 sketch into notes that can trigger another instrument.
Create a MIDI draft from a permitted vocal, bass, or lead recording before correcting it in notation software.
Use the detected melody to drive piano, synth, strings, or another sound in a DAW.
Inspect the note range, lengths, timing, and velocity contour of a short monophonic performance.
The conversion changes recorded audio into an editable note representation.
| MP3 | MIDI | |
|---|---|---|
| Data | Compressed recorded waveform | Note and performance instructions |
| Contains original sound | Yes | No |
| Note-level editing | No | Yes |
| Typical use | Listening and audio delivery | Arrangement, notation, and virtual instruments |
A MIDI file plays through the instrument or sound selected by the receiving application.
Convert MP3, WAV, M4A, FLAC, OGG, AAC, AIFF, WMA, Opus, and AMR, with optional MP4 audio input and ALAC output.
Convert MP4, MOV, AVI, MKV, WEBM, FLV, or WMV entirely in your browser.
Detect monophonic pitch, clean up timing, transpose notes, preview the result, and export a standard MIDI file.
