Consonant discrimination as a function of presentation level.
This study examined the effect of presentation level (seven levels ranging from 0 to 60 dB re the subject's SRT) on the discrimination of 20 consonants spoken in CV syllables. The subjects were 10 young adults with normal hearing. It was determined that the performance-intensity functions for individual consonants varied widely. Some sounds were not identified correctly 100% of the time even at the highest level tested, whereas other sounds were consistently identified at 10 dB SL. The data were considered with respect to stimulus and response bias and also were subjected to a feature analysis using features of voice, manner and place.
D000328:Adult; D005069:Evaluation Studies as Topic; D006801:Humans; D010699:Phonation; D010700:Phonetics; D013063:Speech Discrimination Tests / Q000592:standards*