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View article: THE PREDICTION OF SOUND RADIATION FROM BUILDINGS
THE PREDICTION OF SOUND RADIATION FROM BUILDINGS Open
There is an important and recognised need to develop methods for accurately predicting noise levels experienced at positions around buildings which house noise sources.These prediction methods are necessary if such buildings are to be appr…
View article: PRESSURE BASED TECHNIQUES FOR PREDICTING REGENERATED NOISE LEVELS
PRESSURE BASED TECHNIQUES FOR PREDICTING REGENERATED NOISE LEVELS Open
High velocity ventilation systems are often plagued byexcessively high noise levels as a result of interaction between the air flow and duct discontinuities.This regenerated noise would not be such a problem if it could be predicted at the…
View article: DIGITAL CORRECTION FOR EXCESSIVE AIR ABSORPTION IN ACOUSTIC SCALE MODELS
DIGITAL CORRECTION FOR EXCESSIVE AIR ABSORPTION IN ACOUSTIC SCALE MODELS Open
The main objective of the research to which this paper relates ' is to investigate the effect of the scattering parameters of fittings on sound fields in industrial spaces.It has been
View article: THE PREDICTION OF NOISE PROPAGATION IN CITY STREETS
THE PREDICTION OF NOISE PROPAGATION IN CITY STREETS Open
The way in which noise propagates down city streets is still not fully understood.Although various phenomena can be identi ed as having an effect on sound propagation in urban areas eg (geometric spreading, re ection and diffraction) the r…
View article: A SCALE MODEL INVESTIGATION OF THE ROLE OF DIFFUSE REFLECTIONS IN URBAN NOISE PROPAGATION
A SCALE MODEL INVESTIGATION OF THE ROLE OF DIFFUSE REFLECTIONS IN URBAN NOISE PROPAGATION Open
The authors have previously employed the image source and radiosity methods to investigate the propagation of sound in a street channel resulting from mixed specular and diffuse reflections 5 .The radiosity method, widely used in applicati…