The purpose of the paper is to fundamental a method for the measurement of some acoustic properties. Based on Kundt`s method established in 1902 and by using performant equipment manufactured by Bruel & Kjaer, we have developed a modern method of investigation. The properties that can be described are: absorption and transmissibility. The investigation was applied to some representative Romanian materials manufactured by Chimaltex of Targoviste. The results of the experimental research can be applied to the acoustic insulation of machine-tools.
