Violin Pitch Builder has been discontinued as a product.This page remains available as a client-only test implementation of pitch detection, possible rhythm capture, and notation drawing. Microphone audio is processed locally in your browser.
A tiny experiment in listening
Play one steady note.
Hold a comfortable pitch until it locks. We’ll identify the note—right here in your browser.
Microphone test
Hold one steady note. We’ll stop automatically when it locks.
1
One pitch at a time
Polyphonic sound remains intentionally unsupported.
2
Wait for the lock
Then change cleanly to the next note.
3
Gap repeated notes
Pitch alone can’t separate A4 from another A4.