Acoustic Assessment Through Reverberation Time (Case Study: Pembangunan Jaya University Building B Auditorium)

Abstract

Architectural acoustics is a branch of building science that examines sound quality within a building. Each type of space in a building has its own characteristics to create characteristics in harmony with the intended function. This research aims to identify the acoustic characteristics of architectural space with a conversational function which it can be examined based on reverberation time and Articulation loss of consonant (%ALcons) in the auditorium of building B, Universitas Pembangunan Jaya as the case study. The research utilizes software to examine reverberation time through Ecotec software that occurs in existing conditions to calculate %ALcons as a benchmark for speech intelligibility. The final step in this research is to improve the design for the acoustic. The required reverberation time in the built auditorium is 1.39 seconds which is too long for this type of purpose. As for the %ALcons is 9.27% which means it is quite good. It turns out that a design improvisation could improve the acoustic quality of this space by reducing the reverberation time close enough to a suggested number by SNI 03-6368-2000.