1. Take your time
  2. Listen to the digits
  3. Always enter three digits after the stimulus stopped.
  4. If you make an error;
    • press clear
    • or use the "delete" key (Del) of your key board
  5. Enter the correct digits
  6. The next sound sample will follow automatically

Since we are looking for a threshold, it is natural to make mistakes. Please do not worry about making mistakes.