Anechoic and Reverberation room on television at Willem Wever

In the TV program of Willem Wever (on NPO3, monday 16th of january) they learned us more about "SOUND". He showed us the difference between Reverberation and Anechoic. For this he came to Imphys, TU Delft and had a look in our Anechoic and reverberation room.