Abstract
Masked auditory thresholds of constant tones at 0.25, 0.5, 1, 2, and 3.3 kHz produced curves with slope of −3 dB/doubling of duration around 50‐ms duration, steeper curves at shorter durations (between 50 and 10 ms) and slowly leveling off curves at longer durations. At 1‐s duration the curves had slopes equal to zero. Between 10 and 1000 ms the curves were approximated by an exponential function as proposed by Feldtkeller and Oettinger [Acustica 6, 481–493 (1956)] and Plomp and Bouman [J. Acoustic. Soc. Am. 31, 749–758 (1959)]. However, the Plomp and Bouman's correction for increased steepness of the curves below 50 ms was substituted by another similar correction. The exponential approximation of integration curves with correction will be compared with approximations based on other models of temporal integration.
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