Temporal masking

• If we hear a loud sound, then it stops, it takes a little while until we can hear a soft tone nearby

• Question: how to quantify?

• Experiment: Play 1 kHz masking tone at 60 dB, plus a test tone at 1.1 kHz at 40 dB. Test tone can't be heard (it's masked).

  Stop masking tone, then stop test tone after a short delay.

  Adjust delay time to the shortest time that test tone can be heard (e.g., 5 ms).

  Repeat with different level of the test tone and plot:

• Try other frequencies for test tone (masking tone duration constant). Total effect of masking