acoustic data collected of a place having for objective to determine its approach in classified zone as sensible or mixing, criterion of maximum exposition; evaluation of the incommodity having as purpose to evaluate the degree of disturbance provoked by the noise of a activity or equipment, criterion of the additions;
	acoustics of buildings - indices of sonorous isolation, with the measurement of the indices of isolation to the sounds of aerial conduction and percussion are intended to evaluate the conditions of the acoustics of the buildings; occupational noise - evaluation of the exposition to the noise during the work, aims to verify the levels of daily exposition of the workers to the noise.