Evaluation of sound comfort in examination hall using acoustical environmental analyses

M., Mohd Amran and Masrol, Shaiful Rizal and Ismon, Maznan and Roslan, Mohd Nazrul and Yahya, Musli Nizam and Ghazali, Mohd Imran and Munawar, Shahruddin (2013) Evaluation of sound comfort in examination hall using acoustical environmental analyses. Applied Mechanics and Materials, 315 (NIL). pp. 825-829. ISSN 1662-7482

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Abstract

Acoustics environmental analyses were conducted in the unoccupied examination hall at Universiti Tun Hussein Onn Malaysia (UTHM), in order to determine the acoustical environment which reflects to sound comfort during sitting exam. The acoustic parameters that measured are background noise level, sound pressure level and reverberation time. The analysis result of untreated wall condition (without absorbent material) was revealed poor while treated wall condition (with absorbent material) revealed the improvement result. Installation of absorbent material on the wall and speakers rearrangement had reduced the highest background noise level of examination hall average reverberation times. A minor alteration at examination hall had contributed to better acoustic performance.

Item Type:	Article
Uncontrolled Keywords:	Acoustical Environment; Background Noise Level; Reverberation Time; Sound Pressure Level
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TA Engineering (General). Civil engineering (General) > TA365-367 Acoustics in engineering. Acoustical engineering
Divisions:	Faculty of Engineering Technology > Department of Mechnical Engineering Technology
Depositing User:	Miss Nur Rasyidah Rosli
Date Deposited:	06 Jan 2022 08:02
Last Modified:	06 Jan 2022 08:02
URI:	http://eprints.uthm.edu.my/id/eprint/5252

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