DEVELOPMENT OF THE NOISE PREDICTION METHOD BASED ON THE PSEUDO IMPULSE RESPONSE AND IT'S AURALIZATION USING VR TECHNOLOGY

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  • 擬似インパルス応答解析に基づく騒音予測手法の構築とVR技術を用いた可聴化

Abstract

This paper presents a simulation method based on the wave-acoustic theory and its application to the auralization of construction noise. The CIP method using adaptive mesh refinement (AMR) is employed for solving the governing equation accurately. In order to obtain the accurate numerical solution by CIP method for the propagation of an impulse wave considering the reflected wave, a pseudo impulse developed by Lubich is employed. The auralization of construction noise is performed by the convolution using the results and the sound source data. The present method is applied to three-dimensional wave propagation problems in order to investigate the validity of the method. The present method is shown to be an useful tool to investigate the construction noise.

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