The Ear Training Lab

Allow microphone access when prompted. Play or sing a note.

The Chladni pattern on the left reacts to your pitch — particles converge when you're close to a note.

The cents meter at the bottom shows how sharp or flat you are. The dot turns green when you're in tune.

Tap A = 440 Hz in the note panel to set your reference pitch (420–460 Hz).

Use the Tone generator to play a reference sine wave. Tap the frequency to type it manually.