Kondisi Kebisingan di Gedung Perkuliahan Universitas Bengkulu

Abstract

Learning activities require a conducive condition, including liberated of noise . This research aims to analyze the noisy level during learning activities in some lecture building of Universitas Bengkulu (UNIB) . The data was collected through systematic purposive sampling and analyzed descriptive ly . The level of sound at UNIB lecture buildings (GKB) 1 until 5 , I and J buildings was measured every five minutes during the interval 08.01 - 08.30, 08.31- 09.00, 10.01 - 10.30, 11.16 - 11.45 and 13.01 - 13.30 (local time) for a day sampling . The results show the sound intensity at UNIB lecture buildings ranges from 46.6 to 89.8 dBA, with most of the data (81%) were categorized as noisy, and above the threshold for education environment . The noise level was significantly different between buildings (X 2 =78.50, df=5, P<0.001) and between time interval (X 2 =79.09, df=29, P<0.001). The lowest average of noise was in J building i.e. 58.85 dBA + 1.30, while the highest was in GKB 5 , 68.15 dBA + 0.87. Based on the time interval , the lowest average was at 13.01-13.30 i.e. 59.20 dBA + 1.45, while the highest at 10.01-10.30 , 71.58 dbA + 1.86. This noise level was parallelly correlated with the estimation number of students using the building (F 1,4 =43.87, p < 0.001, R2=0.92 ) , which indicated the main source for these noises are student activities . A high level of noise at UNIB lecture buildings need to be treated. A long term of noise can affect physiology and psychology of the students and reduce the effectivity of learning .