Daver Bolbolan, M.Eng. 2014
Supervisor: Dr. Maureen Connelly
Reverberation rooms are very useful for material evaluation in architectural acoustics and noise control. Measuring the sound absorption coefficient of acoustical materials used as wall or ceiling treatments, or the equivalent sound absorption area of objects, such as furniture, space absorbers are executed in a reverberation room. Acoustic scattering from surfaces plays an important role in all aspects of room acoustics e.g. concert halls, sound studios, and industrial halls. Together with absorption coefficient, the scattering coefficients are required to increase the performance in room acoustic calculations, simulations and prediction models (Shtrepi et al 2013).
In this project, the BCIT reverberation room was used to measure the scattering coefficients of materials, given that the room volume is 88m3, scaled test models of 1:3 and 1:2 were implemented. The results were compared to data from previous research and real-scale testing to see if 1:3 and 1:2 scale scattering turntables at the BCIT reverberation room provide accurate results of absorption and scattering.