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Relation between loudness in categorical units and loudness in phons and sones

: Heeren, W.; Hohmann, V.; Appell, J.E.; Verhey, J.L.


Journal of the Acoustical Society of America : JASA 133 (2013), No.4, pp.EL314-EL319
ISSN: 0001-4966
ISSN: 1520-8524
Journal Article
Fraunhofer IDMT ()

Data are presented on the relation between loudness measured in categorical units (CUs) using a standardized loudness scaling method (ISO 16832, 2006) and loudness expressed as the classical standardized measures phon and sone. Based on loudness scaling of narrowband noise signals by 31 normal-hearing subjects, sound pressure levels eliciting the same categorical loudness were derived for various center frequencies. The results were comparable to the standardized equal-loudness level contours. A comparison between the loudness function in CUs at 1000 Hz and the standardized loudness function in sones indicates a cubic relation between the two loudness measures.