A Relationship between Loudness and the Minimum Perceptible Increment of Intensity

Abstract

Using previously reported data (Phys. Rev., Vol. 31, May, 1928) concerning the differential intensity sensitivity of the ear, the number of perceptible increments of intensity is calculated as a function of the intensity expressed in db above the auditory threshold for frequencies of 200, 1000, 3000 and 10,000 c.p.s. These curves are then used in an attempt to arrive at a logical explanation of the data presented by Laird, Taylor and Wille (Jour. Acoustical Soc., Jan., 1932 “The Apparent Reduction in Loudness”).