Acoustic Quality Levels of Mosques in Batu Pahat

Every Friday, Muslims has been required to perform a special prayer known as the Friday prayers which involve the delivery of a brief lecture (Khutbah). Speech intelligibility in oral communications presented by the preacher affected all the congregation and determined the level of acoustic quality...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2018-04, Vol.140 (1), p.12009
Main Authors: Azizah Adnan, Nor, Raja Shahminan, Raja Nafida, Khair Ibrahim, Fawazul, Tami, Hannifah, M. Yusuff, M. Rizal, Murniwaty Samsudin, Emedya, Ismail, Isham
Format: Article
Language:English
Subjects:
Acoustic noise
Acoustic properties
Acoustics
Architectural design
Building materials
Construction materials
Design factors
Intelligibility
Islam
Measuring instruments
Mosques
Mosques & temples
Parameters
Physical factors
Reverberation time
Sound
Sound transmission
Speech
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Summary:Every Friday, Muslims has been required to perform a special prayer known as the Friday prayers which involve the delivery of a brief lecture (Khutbah). Speech intelligibility in oral communications presented by the preacher affected all the congregation and determined the level of acoustic quality in the interior of the mosque. Therefore, this study intended to assess the level of acoustic quality of three public mosques in Batu Pahat. Good acoustic quality is essential in contributing towards appreciation in prayers and increasing khusyu' during the worship, which is closely related to the speech intelligibility corresponding to the actual function of the mosque according to Islam. Acoustic parameters measured includes noise criteria (NC), reverberation time (RT) and speech transmission index (STI), and was performed using the sound level meter and sound measurement instruments. This test is carried out through the physical observation with the consideration of space and volume design as a factor affecting acoustic parameters. Results from all 3 mosques as the showed that the acoustic quality level inside these buildings are slightly poor which is at below 0.45 coefficients based on the standard. Among the factors that influencing the low acoustical quality are location, building materials, installation of sound absorption material and the number of occupants inside the mosque. As conclusion, the acoustic quality level of a mosque is highly depends on physical factors of the mosque such as the architectural design and space volume besides other factors as been identified by this study.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/140/1/012009