Influences reverberation time to human activities: method to measure reverberation time for different mosque structure

Abstract

Nowadays, good acoustic quality becomes one of the main considerations in designing and constructing huge enclosed structure such as a mosque. It improves the speed effectiveness, hence provide a condusive environment and bring good psychology condition to the prayers. There are numbers of method and indicators that can be applied to define the acoustic quality for an enclosed room. One of them is using the Reverberation Time (RT60) as indicators. Optimum RT60 based on its volume should result in good speech intelligibility where it is the primary concern for a mosque to be build. In this study, RT60 is used to identify which mosque that fulfill the feature of the best acoustic quality. The three kinds of mosque involved are a mosque with 90% constructed of woods, mosque with 905 constructed with concrete and the last one is a mosque with combination of more than one material which is about 60% of concrete and 40% wood and glasses. After completing this task, it is defined that the mosque with combination of 60% concrete and 40% wood and glass has the best reverberation time which fulfill the best acoustic quality for multipurpose room among the three types of mosques.