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THE DESIGN & CONSTRUCTION OF AN AUDIOMETER WITH BUILT-IN ASSISTIVE DIAGNOSTICS
DHINGRA, ASHOK,
Published in Transstellar Journal Publications
2019
Volume: 9.0
   
Issue: 2.0
Abstract
A low-cost Audiometer was designed and constructed for carrying out primarily, Pure Tone and SpeechAudiometry. The Audiometer also included other standard subjective behavioural tests: Tone Decay, SISI (SmallIncrement Sensitivity Index), ABLB (Alternate Binaural Loudness Balance) Test and Stenger’s. Other standard featuresoffered were: output transducer options: Air Conduction Headphones, Bone Vibrator, and Free Field output,Contralateral Masking, Audiogram (during Pure Tone test) on instrument’s LCD display, battery operation. In addition to the standard features, the Audiometer introduced two features: One, Assisted Diagnostics. It interpreted the tests conducted on a patient, based on information in the publicdomain, to point out which part of the auditory system may be malfunctioning (“site of lesion”). The diagnosis wassuggestive rather than prescriptive, with the aim of assisting the audiologist or clinician conducting the tests. Forexample, in a simplest test inference, audiometer classified type of hearing loss: Mild, moderate, severe, profound or total,based on generally accepted criteria.Two, Automatic Calibration to correct for output transducer’s acoustic characteristics.It was suggested that this built-in diagnostics could be made more exhaustive and reliable, using ArtificialIntelligence tools.Except for PCBs designed by the authors, all components used in the project were standard, low-cost, availablein the market.
About the journal
JournalInternational Journal of Electronics, Communication & Instrumentation Engineering Research and Development (IJECIERD)
PublisherTransstellar Journal Publications
Open Access0