Acoustic parameter for Javanese Gamelan Performance in Pendopo Mangkunegaran Surakarta

Pendopo Mangkunegaran Surakarta is a building that has a volume of 3000 m3, a pyramid form of roof, and no walls. The objective of the research in this paper is to explore the condition of Listening Level (LL), a sub-sequence Reverberation Time (Tsub), Clarity (C80, D50) and Inter-Aural Cross Correlation (IACC) at Pendopo Mangkunegaran Surakarta. To quantify the acoustic parameters of the Pendopo, microphones were located in the area of the King, distinguished guests, dancers, and audience. The source of sound is located at the corner of where the Gamelan is played. The sound of Gamelan at the corner of the Pendopo produces a diverse distribution of sound and reverberation time in the room, especially in the center of the room. It is concluded that the acoustic quality of Pendopo building is appropriate for Javanese Gamelan performances with a well-developed spatial effect.