Page 23 - Laqfoil Acoustic Catalog

So, we want the total sound absorption in the room to be 19.36. How much sound absorption does the ceiling need to have in order to achieve this?
19.36 = 6.795 + 24αω ceiling αω ceiling = 0.52
Therefore, in order to achieve optimal acoustics in this room, we should use Microperforated stretch ceiling (αω = 0.3, 0.4) along with a few sound absorbing objects or acoustic panels in the room, such as curtains and carpeting, which would increase the total sound absorption (A) in the room.
A1 = 0.11 x 24 + 0.05 x 60 + 0.33 x 3.5 + 0.3 x 24 + 0.4 x 9 + 0.36 x 5 = 19.39 In this case, the actual reverberation time has now reached the optimal value.
T = 0.164 x 72 19.39
= 0.61
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