1. Reference data for the American English acoustic vowel space.
- Author
-
Flipsen P Jr and Lee S
- Subjects
- Adolescent, Adult, Age Factors, Child, Child, Preschool, Female, Humans, Language Development, Male, Middle Aged, Reference Values, Sex Factors, United States, Language, Phonation physiology, Phonetics, Speech Acoustics, Speech Production Measurement standards
- Abstract
Reference data for the acoustic vowel space area (VSA) in children and adolescents do not currently appear to be available in a form suitable for normative comparisons. In the current study, individual speaker formant data for the four corner vowels of American English (/i, u, æ, ɑ/) were used to compute individual speaker VSAs. The sample included 300 children aged 5-18 years and 38 adults aged 25-50 years. Age trends and sex differences were examined and reference data for clinical application were developed. Findings indicated significant declines in VSA with age; sex differences were not fully apparent until late adolescence and adulthood. Implications are discussed.
- Published
- 2012
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