PMID: 8445133Feb 1, 1993Paper

Just noticeable differences for intensity and their relation to loudness

The Journal of the Acoustical Society of America
J H JohnsonR H Margolis

Abstract

The present study examines the relation between the form of the loudness function and the size of the intensity just noticeable difference (jnd). The hypothesis that equal loudnesses at any given sound frequency yield equal-intensity jnd's was examined. In addition, Hellman et al.'s [J. Acoust. Soc. Am. 82, 448-453 (1987)] experiment, which showed that jnd's are independent of the slope of the loudness function was replicated. Threshold shifts and altered loudness-balance functions for 1-kHz tones were produced by using backgrounds of narrow- or wideband noise. The two types of background noise produced intersecting points on loudness-balance functions at which intensity jnd's were obtained. Intensity jnd's were also obtained at equal-loudness levels (corresponding to 30, 40, 50, and 60 dB SL in the unmasked ear) under each of the two noise conditions and in quiet. The results indicate that tones of equal loudness produce approximately equal jnd's and that there is no apparent relation between the slope of the loudness-balance functions and the size of the intensity jnd.

Citations

Apr 17, 2002·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·Kenneth O JohnsonTakashi Yoshioka
Jun 2, 2001·The Journal of the Acoustical Society of America·W S Hellman, R P Hellman
Mar 3, 2012·International Journal of Audiology·Elizabeth Francis BeachMegan Gilliver
Jan 23, 2016·Journal of Neurophysiology·Dominik A EttlinMichael L Meier
Jul 17, 2020·Frontiers in Psychology·Fan-Gang Zeng
Sep 21, 2021·Frontiers in Neuroscience·Jiaqiu SunXing Tian

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