Author(s)

S.M. Dance & B.M. Shield

Abstract

An image-source method for modelling sound in arbitrary enclosed spaces S.M. Dance, B.M. Shield Acoustics Group, School of Engineering Systems and Design, South Bank University, London, UK 1. Introduction The recent advances in computer technology have allowed computer models to represent with increasing accuracy the acoustics of enclosed spaces, including performance spaces, industrial halls, atria and open-plan offices. To predict sound levels in these spaces there are two basic types of mathematical model both of which are based on geometrical acoustics: the ray-tracing and the image-source method. For industrial spaces, ray-tracing models have reached the stage of exact geometrical representation [1]. An image-source model has been developed for industrial spaces which can represent a parallelepiped shaped space with zoning of fittings, absorptive patches and totally sound absorbing barriers [2]. The image-source method has been used previously to model auditoria ap

Keywords