声线跟踪法的改进—变径声粒子跟踪法

Improvement on ray-tracing method-changing diameter sonic particle method

对房间声学计算机模拟方法中的经典方法之——声线跟踪法进行了分析。借用声粒子的概念,提出了用跟踪变径声粒子进行房间声学仿真的方法。在拥有较高仿真速度的同时,该方法克服了声线跟踪法中接收器区域大小选择的困难。用Visual Basic 6.0编制了仿真程序并进行了仿真实验。

Ray-tracing method, which is one of the typical method in room-acoustic computer simulation, is discussed. Based on the concept of sonic particle, an improved method, called Changing Diameter Sonic Particle Method is proposed. It provides high simulation speed and overcomes the difficulty of the length definition of ray-tracing method. Visual Basic 6.0 is used to build the simulation program. The simulation results show its effectiveness.