Audiometric Calibration: Speech Signals

Abstract

Speech audiometry is used primarily for determining an individual's receptive auditory communication abilities. Speech also is used for site-of-lesion testing. The speech signal is temporally and spectrally complex, and there are unique challenges in acoustically characterizing speech signals. This article describes some of these challenges and details the international standards developed to specify the requirements for these characterizations and to perform reliable test protocols and measurements.