Automatic transcription is only as good as what it hears. A few small changes to how you record and which settings you use make a big difference. These tips apply to Play Piano Live’s free transcription tool and to most audio-to-MIDI software.
Recording
1. Get close. Put your phone or microphone 30–60 cm from the piano — for an upright, near the open lid or the music desk; for a grand, outside the curve of the case. Close miking means more piano and less room.
2. Kill background noise. Fans, fridges, traffic and TVs add energy the model may hear as notes. Record in the quietest room you can.
3. Avoid echoey rooms. Hard, bare rooms add reverb that smears note endings. Soft furnishings help. If your digital piano has a reverb setting, turn it down or off while recording.
4. Go easy on the sustain pedal. With the pedal held, notes overlap and their ends become ambiguous. For transcription, pedal lightly and change it often.
5. Turn off auto-processing. Phone voice-memo apps apply noise reduction and automatic gain that can damage piano attacks. Our microphone recorder switches these off where the browser allows.
Files
6. Use the best version you have. WAV or FLAC beats a heavily compressed MP3. If a file is long, trim it to the section you want — it’s faster and easier to check.
7. Use stems if you have them. Transcribe the piano track on its own rather than the full mix. Each extra instrument adds extra notes.
Settings and checking
8. Use the Notes setting. Fewer (cleaner) removes faint ghost notes and very short blips — great for busy mixes. More (detailed) keeps quiet inner voices — great for clean solo piano. It updates instantly.
9. Compare by ear. Raise the Original slider to blend your recording with the transcription. Wrong notes stand out immediately, especially at 50% speed with a loop.
10. Know the common errors. Most mistakes fall into a few types: octave errors (a note detected an octave too high because of a strong overtone), extra short notes from percussive sounds, and merged repeated notes when a key is re-struck quickly. Listen for these specifically.
When the result still isn’t right
Use the transcription as a draft. Download the MIDI and fix individual notes in a DAW or MuseScore, or learn the passage in Practice mode and trust your ear where it disagrees. Training your ear pays off — see how to learn piano by ear.
Frequently asked questions
Why are there notes that aren’t in the song?
They’re usually overtones, drums, noise or other instruments. Choose Fewer in the Notes menu or record more cleanly.
Why are some notes missing?
Very quiet notes and notes buried under loud ones can fall below the detection threshold. Choose More in the Notes menu.
Is a phone microphone good enough?
Yes, for most purposes, if you place it well and keep the room quiet.
Try it now: everything in this guide works in the free a song for free. For lessons, backing tracks and transcriptions, subscribe to GrooveForte on YouTube.