Shadle, C.H., Mair, S.J., Carter, J.N. and Millner, N.
The effect of vowel context on acoustic characteristics of [c,x].
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In formulating models of fricative production, vowel context has important and sometimes unexpected effects, as shown by recent studies. Acoustic spectra of [s] have been reported to display the greatest effect of vowel context in studies based on extensive analysis of two speakers (one a native speaker of French, the other, of American English), and using spectral analysis primarily in the centre of the fricative. Contrasting with these results is an analysis of aerodynamic data of fricatives, showing a greater effect of vowel context on area of the constriction as place of constriction moves posteriorly; it was suggested that fricative configurations independent of the tongue body are relatively immune to vowel context. The work presented here therefore represents a more detailed look at the acoustic effects of vowel context on [c, x].
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