| Autor: |
Blumstein, Sheila E., Isaacs, Ellyn, Mertus, John |
| Zdroj: |
Journal of the Acoustical Society of America; 1981, Vol. 70 Issue S1, pS32-S32, 1p |
| Abstrakt: |
This series of studies explored the extent to which the gross shape of the onset spectrum is used by the listener for the identification of place of articulation in stop consonants. Synthetic stimuli were generated with onset frequencies appropriate to the syllables [ba bi bu da di du] with the gross shape of the onset spectrum manipulated to be appropriate for either alveolar consonants (diffuse-rising) or labial consonants (diffuse-falling). Stimuli were presented for identification and discrimination. In addition, adaptation effects of stimuli containing appropriate frequency and shape and inappropriate frequency and shape were explored on a place of articulation onset continuum. Although identification performance was determined by onset frequency rather than gross shape of the spectrum, presentation of stimuli in which shape was inconsistent with frequency reduced identification performance. Further, subjects could discriminate stimuli which varied only in spectral shape. Finally, significantly less adaptation was found for a [da] onset with a labial spectrum shape than a [da] onset with an alveolar spectrum shape. These results suggest a dichotomy between the role of invariants in providing a classifactory framework for the phonetic dimensions of natural language, and in providing the primary perceptual attributes in ongoing speech processing. [Supported by an NIH Grant.] [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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