音源の指向特性と壁面の吸音率を考慮した音線法シミュレーションの視覚化

概要

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This paper deals with the development of methods of displaying visually and in manner allowing more pertinent comprehension that data which is necessary in earring out acoustic design and in grasping in greater detail the sound fields of room configurations. As a result, we have developed a method of furnishing sound sources with directional characteristics through the ray tracing method, a method which takes into consideration the sound absorption of reflecting wall surfaces, a display method in which sounds having differing directional characteristics are projected from multiple sound sources, a display method which makes it possible to grasp successively the advance of the wave front and conditions of reflection over the passage of time, etc. Applying these methods to the examination of fundamental concert hall room configuration, it is showing to be able to appropriately display the influences of room shapes, diffusers, floating reflectors, etc. Furthermore, the sound fields of existing concert halls can be visualized and the characteristics of their sound fields can be displayed in an easily understood manner.
社団法人日本建築学会の論文
1993-09-30