Acoustic analysis of words produced by a child from 46 to 149 weeks  

Oleh:

Lieberman, Philip ; Mack, Molly

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Child Language (ada di PROQUEST) vol. 12 no. 3 (Oct. 1985), page 527-550.

Ketersediaan

Perpustakaan PKBB Nomor Panggil: 405/JCL/12 Non-tandon: tidak ada Tandon: 1

Lihat Detail Induk

Isi artikel

We undertook a detailed computer-implemented acoustic analysis of the speech of a child from 46 to 149 weeks. We measured overall word duration and pitch perturbation (a measure of task-induced stress), in addition to measuring within-word phonetic segments. Results revealed that (1) there were strong age-dependent decreases in word duration but ONLY at a relatively late stage (75-149 weeks); (2) degree of fluency was not correlated with vocal stress; (3) certain segments (i.e. /k/ and Ire/) increased greatly in duration, contributing to the absence of an overall word-duration decrease at an earlier stage (46-79 weeks) and revealing the child's ability to approximate adult-like phonetic norms. Relevance to theories of phonetic development and language change are discussed.

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