Formant frequency development: 15 to 36 months

Harvey R. Gilbert, Michael Robb, Yang Chen

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


Developmental characteristics of formant 1 (F1) and formant 2 (F2) are reported for spontaneous vocalizations produced by four young children. Each child was systematically sampled at between 15 and 36 months of age. Results indicated that both F1 and F2 remained relatively unchanged prior to 24 months of age. Significant decreases in average F1 and F2 occurred between 24 and 36 months. When F1 and F2 values were categorized according to tongue elevation and tongue advancement, the most significant changes were associated with high/back articulations. The pattern of formant frequencies noted in the present group of children appears to reflect developmental changes in vocal tract growth and reconfiguration.

Original languageEnglish (US)
Pages (from-to)260-266
Number of pages7
JournalJournal of Voice
Issue number3
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Otorhinolaryngology
  • Speech and Hearing
  • LPN and LVN


Dive into the research topics of 'Formant frequency development: 15 to 36 months'. Together they form a unique fingerprint.

Cite this