INTERACTION BETWEEN DURATION, CONTEXT, AND SPEAKING STYLE IN ENGLISH STRESSED VOWELS
INTERACTION BETWEEN DURATION, CONTEXT, AND SPEAKING STYLE IN ENGLISH STRESSED VOWELS
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DOI:
10.1121/1.410492
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发表时间:
1994-07-01
影响因子:
2.4
通讯作者:
LINDBLOM, B
中科院分区:
文献类型:
--
作者:
MOON, SJ;LINDBLOM, B
Acoustic observations are reported for English front vowels embedded in a /w-1/ frame and carrying constant main stress. The vowels were produced by five speakers in clear and citation-form styles at varying durations but at a constant speaking rate. The acoustic analyses revealed (i) that formant patterns were systematically displaced in the direction of the frequencies of the consonants of the adjacent pseudosymmetrical context; (ii) that those displacements depended in a lawful manner on vowel duration; (iii) that this context and duration dependence was more limited for clear than for citation-form speech, and that the smaller formant shifts of clear speech tended to be achieved by increases in the rate of formant frequency change. The findings are compatible with a revised, and biomechanically motivated, version of the vowel undershoot model [Lindblom, J. Acoust. Soc. Am, 35, 1773-1781 (1963)] that derives formant patterns from numerical information on three variables: The ''locus-target'' distance, vowel duration; and rate of formant frequency change. The results further indicate that the ''clear'' samples were not merely louder, but involved a systematic, undershoot-compensating reorganization of the acoustic patterns.