MP3 to MIDI: transcribe, correct notes and export
Choose a short MP3, transcribe locally, correct the notes and export MIDI. Keep the raw result and review the output before using it in a DAW.
From an MP3 recording to an editable MIDI file
MP3 is recorded sound. MIDI contains note events and needs an instrument to make sound. A conversion does not keep the original singing voice or automatically produce a complete arrangement.
- Choose a local audio file and create a project in this browser. Select English, Español or 中文 beside Downloads.
- Choose a short audio range, freeze the input and transcribe locally on your device.
- Keep the read-only raw result, create a correction branch and compare notes with the original audio.
- Correct pitch and timing, confirm tempo and meter, then download the fixed MIDI version generated on your device.
Input limits and processing
Audio is processed in this browser and is not uploaded. The input limit is 64 MiB and 300 seconds per file; one transcription range is at most 180 seconds. Components download on first use, and speed depends on your device. Projects are stored in this browser; clearing site data removes them. Download a project package for backup.
Start with a clear single instrument or solo voice that you have permission to use. Transcription may miss notes or confuse octaves, and this local model does not output pitch-bend curves. Dense mixes and complete multitrack recovery are not guaranteed. MIDI export uses the corrected fixed snapshot; later edits require a new export. Not every browser or device has been verified.
Download a reproducible input/output example
The public example preserves an earlier server-version run of a self-generated 6.4-second MP3 with eight known notes, its raw events and corrected MIDI. The current workspace processes audio locally; its raw predictions can differ from this historical record. This illustrates correction and export, not real-song accuracy.