A Study on Three Dimensional Spatialization of Sound with More Reality for Road Traffic Noise Evaluation System based on Virtual Reality Technology

Abstract

This paper presents a road traffic noise evaluation system based on spatialization of sound using virtual reality technology. The effects of directivity of the sound wave and delay of the arrival time are considered in the diffraction analysis to improve the reality. Furthermore, the sound source data for the auralization in VR space are generated from the various car driving tests. This system is applied to several benchmark problems in order to investigate the validity of the method.