Impact of the shape of a (tensioned) membrane ceiling on the acoustic conditions in a room.

The phenomenon of reverberation has a significant impact on the acoustics of the interior of a given object. When designing interiors, reverberation time cannot be measured, and therefore computer simulations or theoretical models are used. In the article, the analysis was carried out in a dedicated computer program ODEON. Six rooms with a different shape of the ceiling covered with a membrane were simulated in the program. On this basis, the impact of the shape of the ceiling covered with the membrane on the acoustic properties of the room was determined. The obtained results demonstrate that the shape of the ceiling covered with a material having very high sound absorption coefficient in the room (3) affects the reverberation time. The shorter the reverberation time in the rooms (2) and (3) and the closer the sound sources P1 and P2, the higher are the values of the STI index. [ABSTRACT FROM AUTHOR]