Page 23 - Laqfoil Acoustic Catalog

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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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