Acoustic observations in young children's non-cry vocalizations

Michael P. Robb, John H. Saxman

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


A corpus of 1200 non-cry vocalization samples produced by 14 normal children between the ages of 11-25 months was examined retrospectively. Six percent of the samples yielded instances of either harmonic doubling (HD), fundamental frequency (F0) shift, or biphonation (Bp). These spectrographic features relate to short duration changes in reflecting alterations in vocal fold state characteristics. The HD and Bp segments were perceptually judged to be harsh, while F0 shift closely reflected pitch breaks. The frequency of occurrence of the three acoustic features suggests that they are normally occurring phonatory events in normal children's vocal patterns.

Original languageEnglish (US)
Pages (from-to)1876-1882
Number of pages7
JournalJournal of the Acoustical Society of America
Issue number5
StatePublished - May 1988

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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