Providing Appropriate Acoustic Comforts in Mosques: The Case of Reverberation Time of the Prayer Area at Al-Markaz Al-Islami Mosque, Makassar, Indonesia

Abstract

Al-markaz Al-islami Mosque in Makassar, as a mosque must be supported by acoustic comfort for the building to function well.One of the standards for good auditory comfort is reverberation time.There is an issue if the prayer area of al-markaz al-Islami Mosque in Makassar city has these standards met.This research therefore examines the reverberation time in the prayer area of this mosque.The study used a quantitative descriptive method through simulations using the i-Simpa application.Reverberation time simulations at al-Markaz al-Islami Mosque were measured at frequencies of 63 hz, 125 hz, 250 hz, 500 hz, 1000 hz, 2000 hz, 4000 hz and 8000 hz utilizing 32 speakers, each positioned at a height of 2,80 m for columns and 4,40 m for the ceiling.Based on the analysis of this research, the average reverberation time at the mosque at the 8000 hz frequency is 1,29 seconds.This thus meets the reverberation time standard for a speech room.However, at the frequencies ranging from 63 hz to 4000 hz, it get values <2,74 seconds.This fall into the unacceptable category.The research thus concludes that the auditory comfort in the prayer area of al-Markaz al-Islami Mosque is not entirely in line with acoustical comfort standards due to reverberation time.It thus requires improvements in the mosque's acoustic conditions to achieve the desired standard reverberation time.

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