audio to midi guide

Audio to MIDI: a simple way to check whether the notes came through

For a useful audio to MIDI test, start with a short recording that has one clear melody. Convert it in the browser, download the MIDI, and compare the note shape with the original audio.

Short answer: For a useful audio to MIDI test, start with a short recording that has one clear melody. Convert it in the browser, download the MIDI, and compare the note shape with the original audio.

Use this three-step test

Choose a 5-15 second MP3, WAV, or M4A containing one voice or solo instrument.
Leave the tool in Melody / solo instrument mode and convert the file locally.
Check that the downloaded MIDI is not 0 bytes, opens correctly, and follows the same rising and falling pattern as the source.

What a noisy result means

A full mix can make a single-pitch detector follow the loudest instrument, drum, or reverb tail. Remove the accompaniment and test the clean melody again before changing conclusions.

Keep the boundary clear

This workflow estimates one dominant pitch line. It is useful for a melody sketch, not a promise of complete chord separation or multi-track transcription.

Practical check: the downloaded .mid file should be non-empty and open in a MIDI editor, DAW, or notation app.