The effect of diffusing acoustic panel on acoustical performance in a mosque with dome Available to Purchase

Acoustic quality in mosques is of great importance to the occupants because most of the activities in mosques require excellent speech intelligibility for activities such as listening to lectures and sermons to be conveyed effectively, and dome as a roof for mosques has been a prominent architectural feature for this typology. However, in many studies, it is found that the dome results in echo or concentrated sound waves due to its concave surface. Therefore, this research investigates other alternatives that are additional fitting to improve acoustic quality in the mosque with a dome in the shape, material and size of that additional fitting. The methodology of this research is done through simulation by using ODEON software by simulating and experimenting on different shapes, sizes and materials of the additional fitting. Results are then being compared to two parameters; (1) Reverberation Time, (2) Speech Transmission Index (STI). Therefore, this study will help in future mosque design and its diffusing panel where not only could become of aesthetic feature and a functional feature in the dome. Furthermore, the research findings do not limit to the mosque only but to similar building that has the same typology such as religious building like church and any hall.