Abstract
Broad phonetic transcriptions of speech samples were compared for 4‐ to 7‐yr old children who had congenital deafness or acquired deafness during the first 3 yr of life. Analysis of the data revealed limited phonetic repertoires for all children. The diversity of the phonetic repertoires increased as the age of onset of deafness increased. With few exceptions, however, the sounds produced by the children with acquired deafness were ones that appeared to have been developed prior to the time that these children lost their hearing. A subset of children subsequently received a single‐ or multichannel cochlear implant. Children with acquired deafness continued to show superior speech production abilities following implantation even though there was no significant difference between the speech perception abilities of these children and those of the children with congenital hearing loss. [Work supported by NIH‐NIDCD.]
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