用辐射度算法计算厅堂声学传递特性

将用于光传播的辐射度算法加以改进，以获取对应于某一频率的厅堂脉冲响应，并针对建筑材料的声发射特性，通过快速傅立叶变换后在频域合成，对建筑厅堂的传递特性进行仿真，为在设计阶段得到诸如清晰度、早期延迟时间等厅堂的声学评价指标提供了一种有效的途径。

In this paper,the pulse response of audiforium was obtained with radiant emissirity algorithm,which was usually used in light transmission.Because the absorbing factor of materialvaries with frequency,the transfer function and pulse response of frequency domains were calculated separately,then the transfer function and pulse response of whole frequency domain was given.This research develops a method to get acoustical assessment of audiforium,such as artiailation,early delay time,etc.