三维空间声场的计算机仿真

以声线跟踪法为理论基础，通过建立声场各要素（声源、声传播方式及接收者等）的计算机模型，构造出声源至接收点之间的滤波函数，由此模拟计算声场中不同点处的声场评价指标。用VisualC 和OpenGL编制了相应的计算机仿真程序，通过比较实测和仿真结果，验证了算法的正确性和可行性。

Computer Simulation of an Enclosed Sound Field

The filter function from the sound source to the sound receiver is obtained by building up the computer model of such key factors as sound radiation, sound propagation and sound receiver of an enclosed sound field. Then a computer simulation program is developed based on the ray-tracing principle and is written by using VC and OpenGL. It can compute a series of acoustical indexes of any individual positions in a sound field. In this paper, the principle and the application of the program are presented and it is validated by the comparison between measured and predicted results.