Speaking clearly for children with learning disabilities: Sentence perception in noise

Ann R. Bradlow*, Nina Kraus, Erin Hayes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

226 Scopus citations

Abstract

This study compared the speech-in-noise perception abilities of children with and without diagnosed learning disabilities (LDs) and investigated whether naturally produced clear speech yields perception benefits for these children. A group of children with LDs (n = 63) and a control group of children without LDs (n = 36) were presented with simple English sentences embedded in noise. Factors that varied within participants were speaking style (conversational vs. clear) and signal-to-noise ratio (-4 dB vs. -8 dB); talker (male vs. female) varied between participants. Results indicated that the group of children with LDs had poorer overall sentence-in-noise perception than the control group. Furthermore, both groups had poorer speech perception with decreasing signal-to-noise ratio; however, the children with LDs were more adversely affected by a decreasing signal-to-noise ratio than the control group. Both groups benefited substantially from naturally produced clear speech, and for both groups, the female talker evoked a larger clear speech benefit than the male talker. The clear speech benefit was consistent across groups; required no listener training; and, for a large proportion of the children with LDs, was sufficient to bring their performance within the range of the control group with conversational speech. Moreover, an acoustic comparison of conversafional-fo- clear speech modifications across the two talkers provided insight into the acoustic-phonetic features of naturally produced clear speech that are most important for promoting intelligibility for this population.

Original languageEnglish (US)
Pages (from-to)80-97
Number of pages18
JournalJournal of Speech, Language, and Hearing Research
Volume46
Issue number1
DOIs
StatePublished - Feb 2003

Keywords

  • Children with learning disabilities
  • Clear speech perception
  • Clear speech production
  • Speech intelligibility
  • Speech perception in noise

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

Fingerprint Dive into the research topics of 'Speaking clearly for children with learning disabilities: Sentence perception in noise'. Together they form a unique fingerprint.

Cite this