An Improvement of Acoustical Environment: A Case Study of the Theater of Faculty of Fine and Applied Arts, Khon Kaen University

Abstract

The Faculty of Fine and Applied Arts, Khon Kaen University has a policy to renovate the original art exhibition building into a theater. It can be used for a wide range of activities including theatrical performances, music, dance, conferences, and lecture halls. The research aims to improve the environment in the original building to make the sound environment suitable for new activities. The survey was conducted with the Phonic PAA3 Audio Analyzer for analysis of variables and problems. Calculate the sound quality of indoor environments propose guidelines for building renovation for theater use. The measurements are then re-evaluated. The results showed that variables that resulted in all noise problems of the original area where excessive room volume. High roofing distance Parallel walls the sound absorption value of the material surface inside the room is too small. The materials used in the construction do not effectively prevent external noise. The internal echo measurement averaged 2.00 seconds, and the intensity of external background noise was 47.03 DBA. It was found that the normal sound test case was 39.00 DBA, which is less than the background noise intensity value. The results of a 5-point ray diagram analysis of the sound distribution at different stages showed that the measurement points of the front seats were worth analyzing the likelihood of sound echo at good levels for lectures and moderate for musical performances. The relevant values are then calculated to meet all benchmarks. By reducing the volume of space appropriately. Interior wall partitions, renovation of exterior building shells installs ceilings that make degrees to reflect and absorb sound inside, and install electrical and air conditioning systems and amplifiers in a position where broadcasting is good.  After construction, the measurements showed an average of 1.92 seconds, down from an average of 4 percent, and an average external background noise intensity of 42.20 DBA, down from an average of 10.27 percent. From where the listener is at the back of the room. The average sound value of the sound test case and the use of amplifiers increased by an average of 6.4%, and the results of the 4 Ray diagram analysis showed that all measurement points were worth analyzing the likelihood of audio echo problems at excellent levels in both lectures and musical performances. This shows the overall renovation of this building. This creates a sound environment that is more suitable for upcoming events.