Szukana fraza: [Abstrakt = "The article presents the acoustic models of noise distribution which is caused by the working devices being a part of the laboratory equipment in the Department of Rail Vehicles at the Faculty of Machines and Transportation in Poznan University of Technology. The research was based on the measurements of the sound pressure levels corrected with the frequency characteristics A. The measurements were carried out when the technical objects, located in the educational posts inside the laboratory, had been in operation conditions. Based on the measurements and the assumptions of the method for stationary spatial transformation of sound field, the acoustic maps of the root\-mean\-square sound level values distribution were elaborated. The aim of this research was to analyze and to evaluate the noise level distribution affecting on the people during the lectures in the laboratory of rail vehicles."]

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