Copyright © American Speech-Language-Hearing Association From: Speech Audibility for Listeners With High-Frequency Hearing Loss Am J Audiol. 1999;8(1):47-56. doi:10.1044/1059-0889(1999/002) Legend: The “limit of usable speech information” data points for the 10 listeners with high-frequency hearing loss for each of the two speech lists. Each data point represents the intersection of the consonant peak level, and the listener’s sensitivity threshold curve for the speech presentation level above which no improvement in speech recognition was noted. Date of download: 10/17/2017 Copyright © American Speech-Language-Hearing Association