MEASUREMENT OF AMPLITUDE AND DELAY OF STIMULUS FREQUENCY OTOACOUSTIC EMISSIONS-中国Betway体育网页登陆

摘要 Althoughstimulusfrequencyotoacousticemissions(SFOAEs)havebeenusedasanon-invasivemeasureofcochlearmechanics,clinicalandexperimentalapplicationofSFOAEshasbeenlimitedbydifficultiesinaccuratelyderivingquantitativeinformationfromsoundpressuremeasuredintheearcanal.Inthisstudy,anovelsignalprocessingmethodformulticomponentanalysis(MCA)wasusedtomeasuretheamplitudeanddelayoftheSFOAE.Thisreportshowsthedelay-frequencydistributionoftheSFOAEmeasuredfromthehumanear.AlowlevelacousticalsuppressorneartheprobetonesignificantlysuppressedtheSFOAE,stronglyindicatingthattheSFOAEwasgeneratedatcharacteristicfrequencylocations.Informationderivedfromthismethodmayrevealmoredetailsofcochlearmechanicsinthehumanear.

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MEASUREMENT OF AMPLITUDE AND DELAY OF STIMULUS FREQUENCY OTOACOUSTIC EMISSIONS

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