Post a New Question


posted by .

1.A wall between two rooms is 20 x 9 ft. The wall construction has Transmission Loss 50 dB at 1000 Hz. In the wall is a small window of size 4 x 2 ft. The window has a tested Transmission Loss of 20 dB at the same frequency. The receiving room has 200 ft^2 Sabine absorption. What is the Noise Reduction NR of the wall without the window?

2.Two identical offices are separated by a wall 15 x 8 ft. Sabine absorption in the offices is 150 ft2 . In one office the Sound Intensity Level is 72 dB. What transmission loss is required for the common wall if the SIL in the second office is to be 35 dB?

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question