| The effect of articulatory placement on acoustic characteristics of nasalization. | |
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MedLine Citation:
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PMID: 19063445 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Vowels adjacent to nasal consonants (m, n, in English) tend to be nasalized. The effect of velopharyngeal opening on vowel nasalization has been studied by Feng et al. (1996) and Pruthi et al. (2007) with a transmission line model of the vocal tract based on MRI data of the area function. In order to find out the effect of articulatory placement on acoustic properties of nasalized vowels, the current study simulated the transfer function of coarticulated vowels in different nasal-vowel utterances. The results revealed different acoustic characteristics of the same vowel in various nasal contexts, which demonstrated the effect of articulatory placement on vowel nasalization and suggested the possibility for oral articulation to compensate for spectral changes caused by failure of velopharyngeal closure among hypernasal patients. The articulatory parameters for compensatory articulation were optimized by minimizing the spectral differences (first four formants) between the compensated nasalized vowel and its oral counterpart. The nasalized vowel was then synthesized with an articulatory synthesizer and evaluated for vowel quality and nasality in the following perceptual study. |
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Authors:
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Panying Rong; David P Kuehn |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 124 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2008 Oct |
Date Detail:
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Created Date: 2008-12-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 2580 Citation Subset: IM |
Affiliation:
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Dept. of Speech and Hearing Sci., Univ. of Illinois at Urbana-Champaign, 901 S. Sixth St., Champaign, IL 61820, prong2@uiuc.edu. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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