遠方近似を用いた3次元時間域境界要素法による仮想空間における移動点のリアルタイム可聴化

Abstract

A numerical computation of a sound that a character moving in the 3D virtual space hears is considered. We consider wave acoustics for the accurate computation of the sound field having the several complicated scatterers. We solve the scattered wave field using time domain BIEM and store the computed boundary values in advance. We compute the sound of the moving point with the integral representation formula and the far field approximation in real time. The real-time auralization is realized with the game engine, Unity3D.