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An Acoustic Analysis of Fricative Production – A Comparison of /s/ Coarticulation Development in Finnish-speaking Children |
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Pentti Körkkö - University of Oulu
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| SRCLD Year: |
2013 |
| Presentation Type: |
Poster Presentation |
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| Presentation Time: |
(na) |
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| - Cross Linguistic Comparison |
| - Language Acquisition |
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In adult Finnish speech, several coarticulatory effects appear in the production of /s/(S). There is a gap in the data available for young children in the process of acquiring the phonetic features of S especially in combinatorial sequences of S and vowels (V). The present study attempts to document both normal (typical) and deviant (atypical) acoustic variation of children’s S productions in SV and VS contexts in three age groups. The subjects of the study were 5 children in each age group. Linear Predictive Coding (LPC) and spectral moments analyses (M1 and M3) were performed on spoken utterances of select combinations of SV and VS to determine the acoustic manifestations of vowel-induced coarticulation on S productions. Results indicate a number of differences in the dynamic spectral features of S in the age groups. One of the acoustic measures exhibiting differences was the temporal variation of M1. The results suggest that there are salient developmental stages in the children’s progress toward adult-like phonetic realizations of S and V sequences. |
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