AUDIOMETER BERBASIS MIKROKONTROLER ATMEGA 8535 DILENGKAPI AUDIOGRAM DENGAN INTERFACE PC

Ilham Mushofa, Andjar Pudji, M Ridha Mak 'ruf

Abstract


Audiometricisoneofmethodetotestthe personaudibility.Thetestisdonebya specialistwhocalledaudiologywithaAudiometertoolAudiometerisaelectronictoolwhich canmakeasoundwhereiibeusedfor measuringthedegreeofdeafnessandtheresultare displayedintheaudiogramform.Audiogramisthediagnosticresultplottingfromthedegreeof deafness.Bythereason,researcherdevelopsaudiometerwhichequippedaudiogram.In the research,themeasurementtoolusingoscilloscopetoknowfrequency valueandusingsound levelmetertoknowdecibelvalue.

Researchandmanufacture ofthesemodulesusingthistypeofpre-experimental. researchwiththestudydesign onegrouppreposttestdesign,becausethesetoolsresearchers frequency anddBmeasurementusinganoscilloscopeandasoundlevelmeter,whichthen researchersconductedintreatmentbyaddingaudiograminaudiometerandremeasured.

Inthisstudymelilikiaveragepercentageerrorofthfintensityofthisaudiometeris ownedbyOto52,775%atacertainintensity.However,thereissomeerroroccursintensity unknownvalue:Asinfrequency 4000Hzand8000Hz.Thisisinfluencedbytheabsenceof measurementtoolsthatcandetecttheintensity.In thesinewavein theoscillatorcircuit containedinthecalculationerrorof0%andlargesterror2.35%inthemeasurementusingan oscilloscope.

 

 


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