Audio to MIDI Converter: Upload a Song, Download an Editable MIDI File

Yes. Upload an MP3 and the audio to MIDI converter transcribes it into a standard .mid file you can download. MP3 works, but it is compressed, so if you also have the WAV of the same recording, use that instead — uncompressed audio gives cleaner note detection. Accuracy depends far more on the recording than on the format: a clear solo piano MP3 converts better than a dense full-mix WAV. The output opens in Ableton Live, FL Studio, Logic Pro, GarageBand, Cubase, Reaper, Studio One, and Pro Tools.

Yes, and WAV is the better of the two inputs. Because WAV files are uncompressed, they keep detail that MP3 encoding throws away, which gives the model more to work with when it detects pitch and timing. If your recording came straight out of a DAW or a field recorder you almost certainly already have a WAV — upload it directly rather than converting it to MP3 first. Used as a WAV to MIDI converter online, the result is the same standard .mid file either way.

Yes. You start with 5 free credits and each audio to MIDI conversion costs 2, so your first two runs are free — and the .mid download is included on the free plan rather than locked behind a preview. After that, credit packs are a one-time purchase from $9.90 with no subscription. It is also worth knowing the honest alternative: Spotify's Basic Pitch is free with no usage cap at all and runs locally in your browser. If free-and-unlimited is a hard requirement, use that. What you pay for here is audio to MIDI that sits next to the rest of a songwriting workflow.

It depends almost entirely on the source, and no converter is perfect. Solo instruments, clear vocal lines, and simple piano parts transcribe best. Dense mixes with several instruments playing at once — especially with heavy drums, distortion, or long reverb — blur note detection and will need manual cleanup in a piano roll afterwards. Treat any audio to MIDI AI output as a fast first draft rather than finished notation. We have not published accuracy figures and will not quote a number we cannot back. Here is how to judge it in about a minute instead: run one conversion in melody mode, drop the .mid onto a piano, and play it against the original — check whether the note starts land on the pulse and the melody sits where you expect. That tells you more about your material than a headline percentage would.

Yes, with a caveat about which kind of guitar part. Single-note lines — lead melodies, riffs, bass parts — convert reasonably well. Fast strummed chords and heavily distorted tones are much harder, because distortion adds harmonics that read as extra notes and strumming stacks several attacks into one moment. Record clean if you can: a direct signal or an unprocessed amp tone leaves you far fewer phantom notes to delete later.

Better than for almost anything else. Audio to MIDI piano transcription benefits from clear note attacks, stable pitch, and no breath or bend noise, which is why solo piano is the standard demo for every tool in this category. Dense pedal-heavy passages and fast runs still produce errors, and overlapping sustain is the usual culprit. If you are testing the converter for the first time, a solo piano recording is the fairest thing to try.

No, and this is the most common misunderstanding about audio to MIDI. A .mid file contains no sound at all — only instructions about which note plays, when, for how long, and how hard. That is why you have to assign an instrument before you hear anything, and why the same file can come back as a piano, a synth, or a string section. It is also the upside: changing tempo or key edits the instructions rather than stretching audio, so nothing degrades.

No. This audio to MIDI converter takes an uploaded audio file, not a URL and not a video file. Plenty of audio formats do work — MP3, WAV, M4A, FLAC, AAC, OGG, Opus, WMA, AIFF, and WebM — so running audio to MIDI on an M4A straight off a phone is fine. Video is not: if your source is an MP4 or a YouTube page, extract the audio track first with any free converter, then upload that. Whatever you upload, you are responsible for having the rights to transcribe it.

No, and this is the clearest limitation to know about before you buy credits. The .mid comes back as a single track. Full mode will read a complete multi-instrument mix without you isolating a stem first, but every detected note lands on one track rather than one track per instrument — so you get the harmonic and rhythmic outline of the arrangement, not ready-made stems. If per-instrument audio to MIDI is what you need, Mirelo returns each detected part as its own track, AI-MIDI's multi-instrument model keeps parts separate in one file, and Songscription isolates one instrument at a time. For a single clean part from our converter, use melody mode instead of full.