Noice Level Meassurenment and Analysis in Faculty of Mathematics and Natural Science University Palangka Raya Class Room
Abstract
This study was conducted in three classrooms at the Faculty of Mathematics and Natural Sciences, Palangka Raya University. The classrooms, namely A, B, and C, were chosen to gather data on the distribution of noise-induced intensity levels within and around the rooms over a period of five consecutive days for three weeks, with a two-hour interval in each room. Data were collected every three minutes during the lecture activities from 07:30 AM to 05:00 PM WIB. Data collection was performed four times: the first session from 07:30 AM to 09:30 AM, the second session from 10:00 AM to 12:00 PM, the third session from 01:00 PM to 03:00 PM, and the fourth session from 03:00 PM to 05:00 PM. The objective of this study was to determine the level of noise in the classrooms of the Faculty of Mathematics and Natural Sciences at Palangka Raya University and assess whether they exceed the established noise threshold. The data collected were in the form of intensity levels (dB) and were graphically represented to compare them with the reference value of 55 dB.
The results of the study indicated that the highest distribution of intensity levels across all classrooms was observed in Room B. This was due to the larger number of students in Room B compared to Rooms A and C. The highest intensity levels (noise) were consistently recorded for three consecutive weeks, accounting for 27%, 30%, and 28% respectively. The highest intensity levels were determined using the Discrepancy formula (3.1)
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