Parallel electropalatographic and acoustic measures of fricatives

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Abstract
This work explores methods of parameterizing parallel palatographic and acoustic descriptions of the fricatives /s/ and 1/2. The immediate aim of the parameterization was to facilitate elucidation of the relationships between the two sets of data. The longer-term, clinically-oriented aim was to determine the feasibility of using this approach to converge on acoustic parameters sensitive to systematic articulatory variation. The ways in which the values of the different palatographic and acoustic parameters reflect the influence of the experimental variables (speaker, fricative phoneme, vocalic context and position in word) are compared and discussed. Generally, the two sets of parameters appeared comparable in sensitivity. In addition, the attempt was made to predict values of the acoustic parameters from the measured values of the EPG parameters. The prediction was also successful enough to warrant applying the approach in future to more extensive material.

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