Production and Perception of Coarticulation among Stressed and Unstressed Vowels A pair of experiments examines first the coarticulatory relations among certain stressed and unstressed vowels, and next the perception of coarticulated unstressed vowels. The first study finds the acoustic properties of unstressed medial // and, to a substantially lesser extent, of stressed medial //, to be assimilated to the properties ... Research Article
Research Article  |   March 01, 1981
Production and Perception of Coarticulation among Stressed and Unstressed Vowels
 
Author Affiliations & Notes
  • Carol A. Fowler
    Dartmouth College, Hanover, New Hampshire
Article Information
Research Articles
Research Article   |   March 01, 1981
Production and Perception of Coarticulation among Stressed and Unstressed Vowels
Journal of Speech, Language, and Hearing Research, March 1981, Vol. 24, 127-139. doi:10.1044/jshr.2401.127
History: Received January 14, 1980 , Accepted February 25, 1980
 
Journal of Speech, Language, and Hearing Research, March 1981, Vol. 24, 127-139. doi:10.1044/jshr.2401.127
History: Received January 14, 1980; Accepted February 25, 1980

A pair of experiments examines first the coarticulatory relations among certain stressed and unstressed vowels, and next the perception of coarticulated unstressed vowels. The first study finds the acoustic properties of unstressed medial // and, to a substantially lesser extent, of stressed medial //, to be assimilated to the properties of their flanking vocalic contexts. Both initial and final flanking vowels coarticulate with medial//, but carryover coarticulatory effects tend to exceed anticipatory effects. In a second experiment, listeners' manners of perceiving the coarticulated unstressed vowels of the first experiment are shown to be coupled to, or to be compatible with, the talkers' coarticulated, strategies. In particular, perceivers hear acoustically identical vowels to be different when the vowels appear in different contexts of flanking vowels. Similarly, instances of//that are acoustically different due to different coarticulatory influences on them sound the same to listeners as long as each appears in its appropriate context of flanking vowels.

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