Vocalizations of one-year-olds

TLDR

The study reports on the vocalizations of 13‑month‑old infants. The authors recorded mother–infant interactions in five home dyads and analyzed syllable structure, phonetic features, intonation, and peak f0 of infant vocalizations. The acoustic‑phonetic characteristics of 13‑month‑old vocalizations align with those of younger and older children, indicating continuity in early phonetic development.

Abstract

ABSTRACT Mother–infant interactions were recorded for five dyads in a home environment. This report describes the vocalizations produced when the infants were 13 months old. Data are reported on syllable structure, phonetic properties of vowel-like and consonant-like segments, intonation contours and peak f 0 values for individual syllables. In general, the acoustic–phonetic properties of the 13-month-olds' vocalizations were consistent with data reported in other studies for younger and older children. Hence, the results are seen as evidence for an overall continuity in early phonetic development.