Ambient noise impact on accuracy of automated audiometry. (Publication)
This study investigated the accuracy of pure-tone air conduction thresholds obtained by the KUDUwave™ in automated mode of testing, with a controlled level of background noise (40 dBA), at a level that would typically be present in a closed non-sound treated room.
Air conduction thresholds from individuals with normal hearing and those with a hearing loss were collected and compared. These thresholds were obtained in three test conditions. (1) GSI-61 clinical audiometer in a double-walled sound-booth, (2) KUDUwave™ in a quiet environment (sound-treated booth), and (3) KUDUwave™ in a noisy (40 dBA) environment.
Findings from this study revealed that the KUDUwave™ testing in automatic mode can accurately obtain pure-tone air conduction thresholds in a quiet sound booth as compared to thresholds obtained with a typical clinical audiometer in a sound booth. Furthermore, this study indicates that the KUDUwave™ produced accurate thresholds in the presence of background noise (40 dBA). Ambient noise used in this study is similar to typical ambient noise found in a closed room without a sound booth. This study shows that the KUDUwave™ can be used outside of a sound booth.