Modeling and simulation of Gamelan Bali concert hall based on objective acoustic parameters

Abstract

Gamelan Bali music performances require special place to highlight the quality of the acoustic performances. A concert hall dedicated for Gamelan Bali was proposed to perform a better acoustic quality. Studies on Gamelan Bali has been done to achieved an optimum value of sound fields in Gamelan Bali concert hall. This paper shows a geometrical model designed to fulfill the suitable sound fields of Gamelan Bali Concert Hall. The model was modified from shoebox shaped with rear and side balconies. The acoustic performances of the model at 1 kHz summarized as follows: Tsub = 1.41 s, LL = 80.2 dBA, Δt1 = 39.43 ms, and IACC = 0.33. Those values meet the optimum values from the result of previous studies. Auralization of sound in the room was also done for the purpose of subjective judgment.