| Keywords |
Sejong Chamber Hall ; Acoustic design ; Diffuser ; Open ceiling |
| Abstract |
In this paper, acoustical renovation design process of the Convention Center in Sejong Performing Arts Center for multi-purpose uses from conference to recital was investigated. The area of the convention space was about 612 m2 and it has been used mainly for meeting, symposium and other functional events. After renovation, the Sejong Chamber Hall has 456-seats with a volume of 3,212 m3. Its unoccupied RT was 1.29 s and the average of 1-IACC (Interaural Cross-correlation Coefficient) was 0.71. The leaf-shaped floor plan and tilted side balconies (a slope of 1:10) within 16 m width between side walls were designed to increase lateral reflection. To provide maximized intimacy, the continental style and every-other-row seating arrangement without center isle was planned. The saw-tooth shaped GFRC (Glass Fiber Reinforced Concrete) wall reflectors and the protruded rear wall of the stage were designed for spatial responsiveness of the hall. |