Offline Piano Transcription

Get
Perfect Pitch

Just record with your mic. SonaSplit listens to your performance and draws it onto a piano roll. Everything runs on your device.

App Store — Coming soon Google Play — Coming soon

How It Works — 01

Record

Point your device at the piano and tap record. That's the whole setup. Then just play, the way you always do.

How It Works — 02

Transcribe

Stop the recording, and the analysis engine — running on your device — detects the pitch and timing of every sound and turns it into notes.

How It Works — 03

Play back

Play it back on the landscape piano roll to check. Tap any note to edit it. Your notes stay in the library.

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Features

From recording to notes, in one app.

An app that automatically turns whatever your mic records into piano notes. Play it, sing it, or sound it out — the transcription engine analyzes it and lays it out on a piano roll.

Record and transcribe

Just press record. Pitch and timing are detected automatically, across the full 88-key range (A0–C8).

Check on the piano roll

Play back and review the detected notes in a waterfall view. Tap to edit notes or add new ones.

Saved to your library

Transcriptions are saved on your device with a title. The audio itself is never stored — only the notes remain.

Fully Offline

Transcription, fully offline.

Every transcription happens entirely on your device. No internet connection is required — your recordings are never sent anywhere, and once transcription is done they're deleted from the device too. All that remains are the notes and a title. There's no usage tracking and no advertising of any kind.

How to use

GetPerfect Pitch