Hands-on curiosity
Less reading. More listening.
Try a live pitch experiment, then put a few sound facts to the test.
The sound lab
Make a little noise.
Move the dial. Discover pitch.
Low · 80 HzHigh · 2,000 Hz
Sound is off. Start with your device volume low.
Stops automatically after 30 seconds. Pitch demonstration, not a hearing test.
Try these three notes
Play 220 Hz, then 440 Hz, then 880 Hz. Each doubling takes the tone up one octave. The tone here is a simple sine wave generated in your browser.
Your speakers, headphones and device volume affect what you hear. Use a comfortable setting and stop whenever you wish.
Try the echo-distance experiment →Five little questions.
How much have you picked up?