Question

A cinema hall has a volume of 7500m3 the total absorption in the hall if the reverberation time of 1.5s is to be maintained

Answer 1

Explanation:

Given A cinema hall has a volume of 7500 m3 the total absorption in the hall if the reverberation time of 1.5 s . The total absorption in the hall should be

• So we have reverberation time is absorption of sound to a specific decibel level
• So time T = 0.16 x volume / absorption area and the unit is secs
•  S0 T = 0.16 x V / ∑ as
•  Or ∑ as = 0.167 x V / T
•               = 0.167 x 7500 / 1.5
•                = 1252.5 / 1.5
• Or      ∑ as = 835 OWU
• Therefore total absorption in the hall will be 835 open window units
• Or 835 m^2 sabine (In S.I units)

Reference link will be

https://brainly.in/question/21489604

Answer 2

Answer:

835will be the correct answer