Transmission loss of a rectangular panel into a rectangular enclosure in low frequency random incidence sound field—— Ⅱ.Experimental part

The noise reduction through a thin rectangular panel into a rectangular enclosure in a low frequency reverberant sound field has been investigated experimentally.The noise reduction in two different reverberant sound fields excited respectively by pure tone and broad band white noise are obtained.They are used to verify,some previous theoretical predictions.There are reasonable agreement between experimental results and theoretical ones.