Effects of normal aging on obstruents’ acoustic characteristics
DOI:
https://doi.org/10.36505/ExLing-2015/06/0016/000253Abstract
The present study constitutes an experimental investigation on adult females' temporal and spectral (formant transitions) parameters of Greek voiceless stop consonants /p, t, k/ and the fricative consonant /s/, as functions of normal aging. The effects of place of articulation and syllabic structure on these acoustic parameters were also examined. Results indicated that the two age groups were only distinguished by the voice onset time (VOT) duration of the velar voiceless stop /k/ and by the $F_2$ transition values after /p/ and /t/. A main effect of aging on fricative /s/ duration was not confirmed. In addition, VOT distinguished the stops’ place of articulation, and the factor of syllable structure was significant for /s/ duration.
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