Modeling Techniques Applied to the Noise Prediction of Industrial Noise

There is a number of calculation methods widely used to predict the noise from industrial sources such as ISO 9613-2 or the recent CNOSSOS-EU calculation method. In either case, the general problem is to decide about the input data of the relevant industry noise sources, such as emission values or directivities. This paper discusses a number of techniques oriented to tackle common challenges such as the unavailability of source´s data, the use of noise measurements to determine Sound Power Levels of noise sources, strategies applied to improve existing methods or the arrangement of the acoustical model with an efficient structure, allowing the fast comparison of different scenarios.