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Original Article

Note on Identification and Rectification of the “Overshoot” Observed with the Grason-Stadler Otoadmittance Meter During Acoustic Reflex Measurements

Pages 63-65 | Received 07 Feb 1979, Published online: 08 Jul 2009
 

Abstract

Acoustic reflexes measured with the Grason-Stadler 1720 otoadmittance meter exhibit an artefactual overshoot due to the transient response characteristics of the instrument. Additional circuitry has been developed to overcome this problem. It allows the temporal characteristics of the acoustic reflex to be recorded accurately without this artefact.

Zusammenfassung

Stapediusreflexmessungen, die mit dem Grason-Stadler 1720 Oto-Admittanzgerät durchgeführt werden, leiden unter einer meßgerätverursachten Überschwingung, die auf das Einschwingverhalten des Meßgerates zurückzu-führen ist. Um dieses Problem zu lösen, wurde eine besondere Schaltkreisanordnung entwickelt, die es ermöglicht, die zeitliche Charakteristik des Stapediusre-flex genau und ohne diesen meßgeräteigenen Fehler aufzuzeichnen.

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