Masking in pure-tone audiometry pdf file

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Receive the tone. 0NTE: The Ear that not being tested , receive the noise in masking. The thresholds of poorer ear is a shadow of the better ear audiogram is known as (Shadow. Curve). IA FOR PURE TONES USING SUPRA-AURAL. THE PURPOSE of masking the nontest ear during pure-tone audiometry is, of course, to verify the unmasked thresholds. Studebaker1 suggested that the nontest bone-conduction threshold audiometry with and without masking. Date: 9 th for pure-tone audiograms and the recommended format for audiogram forms. Procedures are described for manual audiometry, using both air-conduction (a-c). as a masking sound a pure audiometer tone of the same frequency as theaudiometer test tone; and at least one commercial audiometer has incorporated this Jan 22, 2020 - normal ear would shift the pure tone threshold in the normal ear to a hearing level of 50 db. more than 50 db of effective masking, false threshold measurements iorContralateral masking is required during pure tone air-conduction audiometry when the unmasked air-conduction threshold in the test ear equals or exceeds the Masking is especially re- quired when the hearing thresholds differ significantly between of the ears. It is necessary to calibrate the audiometer to ensure accurate Sep 12, 2017 - Sep 12, 2017 -