Constructing simulacres database on architectural acoustics by large-scale computational methods

研究了基于波动方程的计算机模拟技术对建筑环境中的大尺度声场进行分析，并建立了典型声场的声场数据库。由于实际房间中声场的巨大和复杂性，需要高效的计算技术来求解数学-物理系统。给出了适合于所要分析的每个声场的适当数值求解方法，包括适当的参数设置。讨论了边界建模技术中与形状建模和吸收建模有关的问题。构建的数据库由6个类型和11个房间组成。在房间里测量脉冲响应，并将其与CAD数据和照片等其他信息一起纳入数据库。

Computer simulation techniques based on the wave equation are investigated to analyze large-scale sound fields in built environments and a database of sound fields in typical sound fieldsis constructed. Due to the largeness as well as the complexness of the sound field in an actual room, highly efficient computational techniques for solving the math-physical system are required. Appropriate numerical solvers that suit for each sound field to be analyzed are given including the adequate parameter settings. The boundary modeling techniques are also discussed on the problems relating with shape modeling and with absorption modeling. The constructed database consists of six types with eleven rooms. Impulse responses are measured in the rooms and included into the database as well as the other information like CAD data and photographs.