Impulse Response Analysis Method considering Sound Absorption Model and Auralization using VR Technology

Abstract

This paper presents an acoustic simulation method considering the absorption effect of soundproof wall and its auralization using VR Technology. The CIP method using adaptive mesh refinements is employed for the descretization of wave equation, and impulse response analysis which can reproduce various noise problems is adopted, The Rayleigh model is employed for a sound absorption model. The time-variant convolution is employed to treat moving sound sources such as traffic noise, In order to show the validity and efficiency, the present method is applied to several application examples. The present method is shown to be a useful tool for noise evaluation system.