Articulatory-to-Acoustic Relations in Response to Speaking Rate and Loudness Manipulations

Autor/inn/en	Mefferd, Antje S.; Green, Jordan R.
Titel	Articulatory-to-Acoustic Relations in Response to Speaking Rate and Loudness Manipulations
Quelle	In: Journal of Speech, Language, and Hearing Research, 53 (2010) 5, S.1206-1219 (14 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2010/09-0083)
Schlagwörter	Acoustics; Speech; Articulation (Speech); Motion; Vowels; Phonetics; Adults + Suchen Sie Ihr Suchwort? Akustik; Speaking; Sprechen; Bewegungsablauf; Phonetik; Fonetik
Abstract	Purpose: In this investigation, the authors determined the strength of association between tongue kinematic and speech acoustics changes in response to speaking rate and loudness manipulations. Performance changes in the kinematic and acoustic domains were measured using two aspects of speech production presumably affecting speech clarity: phonetic specification and variability. Method: Tongue movements for the vowels /ia/ were recorded in 10 healthy adults during habitual, fast, slow, and loud speech using three-dimensional electromagnetic articulography. To determine articulatory-to-acoustic relations for phonetic specification, the authors correlated changes in lingual displacement with changes in acoustic vowel distance. To determine articulatory-to-acoustic relations for phonetic variability, the authors correlated changes in lingual movement variability with changes in formant movement variability. Results: A significant positive linear association was found for kinematic and acoustic specification but not for kinematic and acoustic variability. Several significant speaking task effects were also observed. Conclusion: Lingual displacement is a good predictor of acoustic vowel distance in healthy talkers. The weak association between kinematic and acoustic variability raises questions regarding the effects of articulatory variability on speech clarity and intelligibility, particularly in individuals with motor speech disorders. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10