Audiometric Calibration: Air Conduction

摘要

The main goal of this article is to discuss the calibration of air-conducted signals delivered by an audiometer via an earphone or aloudspeaker. The common types of earphones used in hearing testingare described and the importance of calibrating these transducers isdiscussed. After covering the instruments used for calibration, theperformance parameters measured in the calibration process are exam-ined. The limitations of our current methods are discussed and areas forimprovement are considered.