Effect of Measuring Procedure and Parameters on the Equivalent Continuous Sound Level

On the base of three typical test noises comparative measurements of the equivalent continuous sound level were carried out applying different measuring procedures and a set of systematically varied measuring parameters. Deviations between the results of manual level reading, graphic level recording, automatic level distribution analysis, and automatic dosemeter measurements were found to be rather small, while from the total expenditure standpoint the application of a noise dosemeter proved to be the most advantageous procedure. The effects of time constant, level rate per doubling time, duration of measuring period, and width of level range evaluated, together with the individual scattering rate, are discussed with regard to possible consequences on measuring practice.