The Noise From Combined Sources- Are There Any Standards?

摘要

Combined noises have to be investigated with regard to their effects on the encumbrance of the inhabitants of residential areas. As far as noise encumbrance and its effects are concerned, investigating the level of loudness is not sufficient. Furthermore, it is of central importance to investigate the sounds from different sources in the context of everyday life activities, expectancies and different life situations. Therefore, certain methods of investigation and assessment have to be applied with whose help encumbrances - caused by noises from different sources - can be analyzed. The combination of socioacoustical and psychoacoustical methods gives the opportunity to reveal direct connections between subjective understanding and subjective perception. Moreover, with the help of this combination noise can be assessed and characterized; psychoacoustical parameters as well as noise immission can be analyzed in detail. The question is whether there are any standards with respect to combined sources which meet this difficult assessment. As an example the first draft of a German standard will be discussed.