Purpose: This study investigated how listeners process acoustic cues preserved during sentences interrupted by nonsimultaneous noise that was amplitude modulated by a competing talker. Method: Younger adults with normal hearing and older adults with normal or impaired hearing listened to sentences with consonants or vowels replaced with noise…

Purpose: The authors investigated how different variants of clear speech affect segmental and suprasegmental acoustic measures of speech in speakers with Parkinson's disease and a healthy control group. Method: A total of 14 participants with Parkinson's disease and 14 control participants served as speakers. Each speaker produced 18 different…

Children with hearing impairment (HI) are at an increased risk of developing speech and language problems similar to those of children with developmental language disorder (DLD), including difficulties with phonology and grammar. This study investigated similarities and differences in phonological and grammatical production between children with…

The present study reports on the findings of a cross-sectional acoustic study of the production of Spanish vowels by three different groups of speakers: 1) native Spanish speakers; 2) native English intermediate learners of Spanish; and 3) native English advanced learners of Spanish. In particular, we examined the production of the five Spanish…

How well can non-native length contrasts for vowels and for consonants be perceived and is one type more difficult than the other? Three listener groups (native Italian and German as well as advanced German learners of Italian) performed a speeded same-different task involving vocalic and consonantal length contrasts as well as segmental contrasts…