Abstract
Child-directed speech in noise: Listener- and environment-related changes in speech acoustics
The Journal of the Acoustical Society of America, Vol.145(3 Supplement), pp.1730-1731
03/2019
DOI: 10.1121/1.5101355
Abstract
Talkers adapt their speech in various ways according to the demands of their listeners and the communicative context. Mothers and their preschool children participated in a real-time interactive speech production/perception paradigm, in which mothers instructed their children (or an adult listener), to select the picture corresponding to the target word. The task was performed at low and high levels of background noise (56 and 76 dB SPL, delivered through headphones), to examine the effects of decreased audibility on speech production. Acoustic-phonetic analyses of child-directed speech (CDS) and adult-directed speech (ADS) productions of target words and carrier phrase (e.g., “Find pig” ), revealed that mothers significantly enhanced the suprasegmental properties (i.e., pitch, intensity, and duration) of target words in CDS and at higher noise levels, but provided limited evidence for the hyperarticulation of the segmental properties of speech (i.e., formant frequencies of vowels, or voice-onset times of stop consonants). Results suggest that while some aspects of articulatory control are readily amenable to change as function of task/listener demands, others may not be. Understanding these capacities and constraints in the talking caregiver is relevant to theories of hyperarticulation in infant-directed speech.
Details
- Title: Subtitle
- Child-directed speech in noise: Listener- and environment-related changes in speech acoustics
- Creators
- Nicholas A Smith - Dept. of Speech, Lang. and Hearing Sci., Univ. of Missouri, Columbia, MO 65211, smithnich@health.missouri.eduChristine A Hammans - Boys Town National Res. Hospital, Omaha, NETimothy J Vallier - Boys Town National Res. Hospital, Omaha, NEBob McMurray - Dept. of Psychol. and Brain Sci., Univ. of Iowa, Iowa City, IA
- Resource Type
- Abstract
- Publication Details
- The Journal of the Acoustical Society of America, Vol.145(3 Supplement), pp.1730-1731
- DOI
- 10.1121/1.5101355
- NLM abbreviation
- J Acoust Soc Am
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Number of pages
- 2
- Date published
- 03/2019
- Academic Unit
- Communication Sciences and Disorders; Linguistics; Psychological and Brain Sciences; Iowa Neuroscience Institute; Otolaryngology
- Record Identifier
- 9984071761202771
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