A MODEL FOR THE SOUND ENERGY-DISTRIBUTION IN WORK SPACES BASED ON THE COMBINATION OF DIRECT AND DIFFUSE SOUND FIELDS

This paper is concerned with the applicability of a model based on the combination of direct and diffuse sound fields for the calculation of the stationary sound energy distribution in closed working spaces. Different model derivation methods are indicated, concentrating on the image sound source method. The analysis of these derivations results in a definition of the limitations of the model. The theoretical conclusions are experimentally tested in 54 real rooms. Statistical processing of the measured and calculated results provides limits for the application of the model in question.