Guitar to MIDI: test a single-line recording before trusting the notes.
This browser converter is most interpretable on one clear note at a time. A generated guitar-like melody produced five MIDI events in the detector test; a generated three-note chord produced no clear events. These are generated signals, not recordings of a guitarist.
Generated signal test
Both fixtures are mono PCM WAV at 11,025 Hz. The melody uses pitches 64, 67, 69, 71, and 74, each lasting about 0.48 seconds. Each note uses a decaying harmonic envelope with fundamental, second, third, and fourth partials to make a guitar-like timbre. The chord fixture holds pitches 52, 55, and 59 together from 0.2 to 1.7 seconds. The signals were generated for this test; neither is a human guitar recording.
| Generated input | Observed events | Result |
|---|---|---|
| Single-line guitar-like melody | 5 | Pitches 64, 67, 69, 71, 74 |
| Three-note guitar-like chord | 0 | No clear notes found |
Raw output and the generator are available in results.json and guitar-signal-test.cjs.
What this does and does not show
The five-event result shows that this detector followed the ordered pitches in this generated monophonic signal. The chord result shows the opposite boundary: simultaneous pitches were not separated into three notes in this run. It is not a guitar accuracy score, and it does not test bends, slides, pickup noise, amplifier distortion, or a full mix.
Upload limits
Upload one MP3 or PCM WAV under 20 MB and 2 minutes. Processing happens in the browser. For a real guitar take, compare the downloaded MIDI with the original audio and expect to edit note boundaries; this page does not promise guitar-specific polyphonic transcription.
Guitar to MIDI questions
Can I convert a guitar recording to MIDI here?
You can upload an MP3 or WAV, but the tested behavior is clearest for a single-note line. Treat chords and dense mixes as unverified rather than assuming every string becomes a separate MIDI note.
Why did the generated chord return no notes?
The current detector estimates one pitch at a time and the three simultaneous pitches did not produce clear events in this run.
Are these results from a real guitar?
No. The fixtures are generated guitar-like harmonic signals. They are reproducible detector tests, not human performance measurements.