Considerations to assess the environmental noise level inside the building

Abstract

The effect for adequate indoor noise assessment is reached by introducing into calculation of specific spectrum adaptation term C spec,100 -3150 for the noise emitted façade in-situ instead of the standard spectrum adaptation term C tr,100 -3150 , applicable for account the road traffic noise only as recommended by ISO 16283 -3. The four step measurement/calculation procedure for dwelling indoor noise assessment is presented. The specific spectrum adaptation term is based on the average spectrum of specific noise events that appear in outdoor environment at the site under consideration. The practical experiments at the site with various environmental noise sources demonstrate that the account of the specific spectrum properties for environmental noise events allows to assess indoor noise le vel more adequately.