Research on Relationship Between Ceiling Design and Acoustics in the Concert Hall

摘要

Lighting and stage facilities in concert hall are not as complicated as opera house, but the acoustics quality is most the crucial among all kinds of hall design which can not be evaluated with single acoustical parameter. Acoustical design usually presents an overall effect only. Difficult to predict the result of acoustical design in combining many acoustical parameters. Here suggests criterion method by the area coefficient counted with multi-dimension rose graph, each dimension in the graph denoting an individual acoustic parameter, as the technique rule of the combined acoustical criterion. Therefore area has shown in the rose graph needs to larger the better acoustics in the hall. Measurement of the concert hall usually takes with international standard (ISO 3382) processing the minimum test points by scale. It just take account of few selected positions only. Now through digital simulation predict the acoustics parameters even at every seat position. And can getthe percentage of the optimum positions as criteria of acoustics. From there statistical data, not only can make compares with different acoustical design, and also know how to improve the acoustical design. This method has been used to optimize a medium-size hall project design from five different ceiling configurations.