This is a simple tool to measure your audio reaction time.
The average audio reaction time is about 221 ms for men and 235 ms for women, according to this study.
In addition to measuring your reaction time, this test is affected by the latency of your audio system and computer.
Using a wireless headset or Bluetooth headphones may significantly increase the delay.
Also, a higher and louder sound may decrease your reaction time.
Audio settings:
Test settings: