Abstract
The effect of duty cycle in the most comfortable loudness tracking level by Bekesy Audiometry was studied in ten normal hearing cases. The effect of duty cycles with using interrupted tones were examined of three settings: 20%, 50% and 80%. The results were as follows. 1. Almost all the loudness tracking levels of the interrupted tones were higher than the continuous tone recording levels. 2. There was a systematic change in the loudness tracking level with each change of the duty cycle. The loudness tracking levels were inversely related to the duty cycle: tracking levels increased when the duty cycles decreased.