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

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