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전진용(Jeon. Jin Yang) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The degree of diffusion, characterized by the scattering coefficient of surface materials has been known to be one of the most important factors in determining the acoustical qualities of concert halls. The diffusion phenomenon allows greater musical appreciation by affecting early and reverberant sound in a concert hall. Following the knowledge, gained from many experiments based on the suggested ISO method, a box-type diffuser was planned for the walls of the 400-seat Ceramic Palace Hall. The ceramic tiles, ranging from 10 to 20 ㎝ in width and length, have a height up to 20 ㎝, were produced by a ceramic artist, in cooperation with an acoustician and an architect. The scattering coefficient was measured at 1/10 scale using different arrangements. The results were satisfactory: the overall scattering coefficients were 0.61-0.62. During tuning concerts, the acoustics of Miral concert hall was appreciated by several soloists, ensemble players and orchestra conductors. The overall impressions of the audiences from the early performances have been pleasant in terms of its fullness of tones with abundant high pitch. The ceramic artist of the project explains the mu1ti-disciplinary cooperation in acoustics, ceramic art and architecture.