Comparing the level of the acoustic distortion product 2f1-f2 with behavioural threshold audiograms from normal-hearing and hearing-impaired ears.


The level of the acoustic distortion product, 2f1-f2, was measured across frequency from two different groups of adults: (1) a group of 57 drawn from the university population who considered that they had normal hearing and (2) a group of 26 patients referred from the ENT Department of the County Hospital. These patients complained of reduced 'quality' of… (More)


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