High-Frequency Békésy Audiometry V. Excursion Width

Abstract

26 normally hearing young adults produced Bekesy-type tracings for pure tones ranging from 7 to 19 kHz. Tones were pulsed (2.5/s) and delivered in the fixed-frequency mode. Chart rate (1 octave/min) and rate of attenuation (2.5 dB/s) were analogous to that typically used in clinical Bekesy audiometry. Results indicated that subjects typically produced median excursion widths ranging from 5 to 15 dB. No systematic change in excursion width as a function of frequency was obtained. These results were similar to earlier studies of excursion width for conventional-frequency Békésy audiometry. The results of the present study were discussed regarding their utility in validation of responses to Békésy audiometry.

Key Words:

• High-frequency audiometry
• Excursion width
• Bekesy audiometry