A multimodal corpus of speech to infant and adult listeners
Johnson, E. K., Lahey, M., Ernestus, M., & Cutler, A.
A multimodal corpus of speech to infant and adult listeners. Journal of the Acoustical Society of America, 134
, EL534-EL540. doi:10.1121/1.4828977.
An audio and video corpus of speech addressed to 28 11-month-olds is described. The corpus allows comparisons between adult speech directed towards infants, familiar adults and unfamiliar adult addressees, as well as of caregivers’ word teaching strategies across word classes. Summary data show that infant-directed speech differed more from speech
to unfamiliar than familiar adults; that word teaching strategies for nominals versus verbs and adjectives differed; that mothers mostly addressed infants with multi-word
utterances; and that infants’ vocabulary size was unrelated to speech rate, but correlated positively with predominance of continuous caregiver speech (not of isolated words) in the input.