engleski

Sound feature modeling of noise suppression road materials

Today in urban and rural environments a main and common source of noise and other sound related pollutant is a traffic of various kinds of vehicles. Wheels, squealing tires, rotating engines and any other moving part of vehicle produces air dynamic movement of specific amount of energy that causes a sound pressure on every obstacle in surroundings. That pressure manifests as force on our ear drum and causing unpleasant response of central nervous system causing many side effects, short or chronicle one. In function to reduce a noise level of traffic noise pollutant as one way and solution is to build a noise absorbent or shielding systems. Such systems uses various kind of buildings materials that refers as decent noise manipulators, absorbent or reflectors. In this paper is presented a method for modeling such materials by its sound characteristics. Modeling relies on sound spectral analysis of absorbance and reflectance material features.

sound ; modeling ; noise supression ; road materials

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