About: Robinson–Dadson curves

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The Robinson–Dadson curves are one of many sets of equal-loudness contours for the human ear, determined experimentally by D. W. Robinson and R. S. Dadson. Until recently, it was common to see the term 'Fletcher–Munson' used to refer to equal-loudness contours generally, even though the re-determination carried out by Robinson and Dadson in 1956, became the basis for an ISO standard ISO 226 which was only revised recently. It is now better to use the term 'Equal-loudness contours' as the generic term, especially as a recent survey by ISO redefined the curves in a new standard, ISO 226 :2003.

Attributes	Values
rdf:type	train
rdfs:label	Robinson–Dadson curves (en)
rdfs:comment	The Robinson–Dadson curves are one of many sets of equal-loudness contours for the human ear, determined experimentally by D. W. Robinson and R. S. Dadson. Until recently, it was common to see the term 'Fletcher–Munson' used to refer to equal-loudness contours generally, even though the re-determination carried out by Robinson and Dadson in 1956, became the basis for an ISO standard ISO 226 which was only revised recently. It is now better to use the term 'Equal-loudness contours' as the generic term, especially as a recent survey by ISO redefined the curves in a new standard, ISO 226 :2003. (en)
foaf:depiction
dcterms:subject	Psychoacoustics Audio engineering Sound Acoustics Hearing
Wikipage page ID	3303019 (xsd:integer)
Wikipage revision ID	1026139792 (xsd:integer)
Link from a Wikipage to another Wikipage	Psychoacoustics Audio engineering Sound DB(A) A-weighting Acoustics Hearing Equal-loudness contours Fletcher–Munson curves International Organization for Standardization Human ear CCIR (ITU) 468 Noise Weighting
Link from a Wikipage to an external page	https://web.archive.org/web/20060115001541/http:/www.aist.go.jp/aist_e/latest_research/2003/20031114/20031114.html http://www.lindos.co.uk/cgi-bin/FlexiData.cgi%3FSOURCE=Articles&VIEW=full&id=17 http://www.phys.unsw.edu.au/~jw/hearing.html http://www.iso.org/iso/en/CatalogueDetailPage.CatalogueDetail%3FCSNUMBER=34222&scopelist=ALL http://www.sengpielaudio.com/Fletcher-MunsonIsNotRobinson-Dadson.pdf
sameAs	Robinson–Dadson curves Robinson–Dadson curves Robinson–Dadson curves
dbp:wikiPageUsesTemplate	dbt:Reflist
thumbnail	wiki-commons:Special:FilePath/Lindos4.svg?width=300
has abstract	The Robinson–Dadson curves are one of many sets of equal-loudness contours for the human ear, determined experimentally by D. W. Robinson and R. S. Dadson. Until recently, it was common to see the term 'Fletcher–Munson' used to refer to equal-loudness contours generally, even though the re-determination carried out by Robinson and Dadson in 1956, became the basis for an ISO standard ISO 226 which was only revised recently. It is now better to use the term 'Equal-loudness contours' as the generic term, especially as a recent survey by ISO redefined the curves in a new standard, ISO 226 :2003. According to the ISO report, the Robinson-Dadson results were the odd one out, differing more from the current standard than did the Fletcher–Munson curves. It comments that it is fortunate that the 40-Phon Fletcher-Munson curve on which the A-weighting standard was based turns out to have been in good agreement with modern determinations. The article also comments on the large differences apparent in the low-frequency region, which remain unexplained. Possible explanations are: * The equipment used was not properly calibrated. * The criteria used for judging equal loudness (which is tricky) differed. * Different races actually vary greatly in this respect (possible, and most recent determinations were by the Japanese). * Subjects were not properly rested for days in advance, or were exposed to loud noise in travelling to the tests which tensed the tensor timpani and stapedius muscles controlling low-frequency mechanical coupling. (en)
gold:hypernym	Sets
prov:wasDerivedFrom	wikipedia-en:Robinson–Dadson_curves?oldid=1026139792&ns=0
page length (characters) of wiki page	2965 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Robinson–Dadson_curves
is Link from a Wikipage to another Wikipage of	List of curves Index of physics articles (R) Equal-loudness contour Robinson-Dadson curves
is Wikipage redirect of	Robinson-Dadson curves
is foaf:primaryTopic of	wikipedia-en:Robinson–Dadson_curves

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