PITCH CHOICE · 15 ROUNDS
Listen to each tone, then identify its pitch before time runs out.
Complete 15 balanced rounds. Wrong answers and timeouts still advance.
SOUND CHECK
Preview High and Low, set a comfortable volume, then start the test.
Keyboard: Arrow Up / H for high, Arrow Down / L for low · Touch or mouse: use the large buttons.
HOW TO PLAY
Use Preview High and Preview Low to learn the two reference tones and check your volume.
Start the test. Each round plays one tone: 880 Hz for high or 220 Hz for low.
Answer with the keyboard or large buttons. Standard has 15 rounds; endless ends on the first miss.
LISTEN SAFELY
The game uses short synthesized tones at a moderate level. Set your device volume with the preview buttons before starting, and never raise it to an uncomfortable level.
Built-in speakers or wired headphones often give more consistent timing. Bluetooth devices may add audio delay, so compare results using the same setup.
READ YOUR RESULT
Standard accuracy includes every round, including wrong answers and timeouts. Reaction averages use correct answers only.
This is a recreational browser game, not a hearing or medical assessment. Audio hardware, input latency, attention, and practice all affect results.
QUESTIONS
It tests how quickly you can hear a tone, classify it as high or low, and make a two-choice response.
A standard game contains eight of one pitch and seven of the other, chosen at random, then shuffled to reduce predictable patterns.
The response window begins at 2.4 seconds and shrinks toward 0.5 seconds. Your first wrong answer or timeout ends the run.
Wireless audio can add variable delay between the browser producing a tone and you hearing it. Use the same audio device for fair personal comparisons.