The audio reaction test measures how fast you respond to a sound instead of a visual change. Turn your volume on, and react the moment you hear the beep.
Click, tap, or press Space when the panel turns green.
Your auditory reaction time. Sound is processed quickly, so many people react slightly faster to audio than to a visual signal.
Use headphones for the crispest signal and lowest latency, and make sure your device isn't muted.
Often slightly, because auditory signals reach the brain very quickly — but it varies by person and hardware.
Not required, but headphones reduce audio latency and make the beep clearer.
Check your volume and that the browser tab isn't muted, then restart the test.
ReactionLab is a browser-based reaction performance test. It is not a medical, neurological, or intelligence assessment. Results depend on your hardware, input device, and browser. See our methodology.