Acoustical design of Tokyo Geijutsu Bunka-Kaikan. Part 2. Room acoustical design of the large hall

Abstract

The large hall of the Tokyo Geijutsu Bunks-Kaikan is planned as a concert hall for classical music with 1887 seats. At the first stage of the design, the room shape and seating arrangements proposed by the architect were studied by computer simulation, in which the energy distribution of the early reflections over the seating area was observed. The room shape was repeatedly studied and re-designed considering the architectural design policy and acoustical characteristics. At the final stage of the design, a ray experiment in a 1/50 scale model was introduced. Acoustical experiments in a 1/10 scale model are planned in order to predict the room acoustical parameters and to check on detrimental echoes. The room acoustical design policy and the details of the new auditorium will be presented.