UTHM Institutional Repository

Acoustic comfort of teaching rooms in Universiti Tun Hussein Onn Malaysia (UTHM)

Tong, Yean Ghing and Hasmori, Muhammad Fikri and Abas, Nor Haslinda and Segaran, Viknheswar Chandira and Moen, Nur Raihan and Ewon, Udom (2018) Acoustic comfort of teaching rooms in Universiti Tun Hussein Onn Malaysia (UTHM). In: Sustainable Construction and Building Technology. Penerbit UTHM, UTHM, pp. 100-120. ISBN 978-967-2216-39-1

[img] Text
C1652_80d3065ec785ef26a40edcf48817128e.pdf

Download (1MB)

Abstract

process in the university. Thus, good acoustical performances of these spaces are vital to ensure the speech or message from the lecturer can be delivered to the students clearly and effectively. In the present study, field measurements were conducted to investigate the background noise and reverberation time of the unoccupied teaching rooms. Before the field tests were carried out, a preliminary survey was carried in order to identify the teaching spaces that to be measure. A total of 42 questionnaires were distributed to the students via online in order to get the feedback on the acoustical performance of the teaching spaces in UTHM. The measurements were carried inside two lecturer rooms at graduate business center, two seminar rooms at block B6 and two lecturer theaters at block G3. These spaces were selected based on the survey’s results. Noise criteria were used as indicator to evaluate the background noise of the spaces. Typically, the reverberation time of the lecturer theaters were satisfied but the sound decay of the seminar rooms and lecturer room except DK3 were higher than recommended value. The average reverberation times range from 250Hz to 4 kHz octave bands of all measured rooms were about 1 second, except those rooms located at block B6. However, the background noise of seminar rooms at block B6 and lecturer room of DK7 had quiet ambient noise level with the noise criteria of NC 25 compared to those lecturer theaters which the noise criteria higher than recommended value between NC 25 to NC 30. Although the background noise of unoccupied seminar rooms at block B6 were lowest compared to other measured spaces, the sound decays of the rooms were longer than others which made the speech qualities of the rooms were reduced and unsatisfied by the students.

Item Type: Book Section
Uncontrolled Keywords: Acoustic comfort; reverberation time; background noise; noise criteria.
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Civil and Environmental Engineering > Department of Construction Engineering and Architecture
Depositing User: Mr Abdul Rahim Mat Radzuan
Date Deposited: 19 Feb 2020 04:06
Last Modified: 19 Feb 2020 04:06
URI: http://eprints.uthm.edu.my/id/eprint/12659
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year