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Titolo:
Articulatory tradeoffs reduce acoustic variability during American Englishvertical bar r vertical bar production
Autore:
Guenther, FH; Espy-Wilson, CY; Boyce, SE; Matthies, ML; Zandipour, M; Perkell, JS;
Indirizzi:
Boston Univ, Dept Cognit & Neural Syst, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 ognit & Neural Syst, Boston, MA 02215 USA MIT, Elect Res Lab, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139MIT, Elect Res Lab, Cambridge, MA 02139 USA Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 t Elect & Comp Engn, Boston, MA 02215 USA Boston Univ, Dept Commun Disorders, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 pt Commun Disorders, Boston, MA 02215 USA Univ Cincinnati, Dept Commun Sci & Disorders, Cincinnati, OH USA Univ Cincinnati Cincinnati OH USA un Sci & Disorders, Cincinnati, OH USA
Titolo Testata:
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
fascicolo: 5, volume: 105, anno: 1999,
pagine: 2854 - 2865
SICI:
0001-4966(199905)105:5<2854:ATRAVD>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
SPEECH MOTOR CONTROL; PERCEPTION; MOVEMENTS; MODELS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Engineering, Computing & Technology
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Guenther, FH Boston Univ, Ctr Adapt Syst, 677 Beacon St, Boston, MA 02215 USA Boston Univ 677 Beacon St Boston MA USA 02215 n, MA 02215 USA
Citazione:
F.H. Guenther et al., "Articulatory tradeoffs reduce acoustic variability during American Englishvertical bar r vertical bar production", J ACOUST SO, 105(5), 1999, pp. 2854-2865

Abstract

The American English phoneme /r/ has long been associated with large amounts of articulatory variability during production. This paper investigates the hypothesis that the articulatory variations used by a speaker to produce/r/ in different contexts exhibit systematic tradeoffs, or articulatory trading relations, that act to maintain a relatively stable acoustic signal despite the large variations in vocal tract shape. Acoustic and articulatoryrecordings were collected from seven speakers producing /r/ in five phonetic contexts. For every speaker, the different articulator configurations used to produce /r/ in the different phonetic contexts showed systematic tradeoffs, as evidenced by significant correlations between the positions of transducers mounted on the tongue, Analysis of acoustic and articulatory variabilities revealed that these tradeoffs act to reduce acoustic variability,thus allowing relatively large contextual variations in vocal tract shape for /r/ without seriously degrading the primary acoustic cue. Furthermore, some subjects appeared to use completely different articulatory gestures toproduce /r/ in different phonetic contexts. When viewed in light of current models of speech movement control, these results appear to favor models that utilize an acoustic or auditory target for each phoneme over models that utilize a vocal tract shape target for each phoneme. (C) 1999 Acoustical Society of America. [S0001-4966(99)00205-2].

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Documento generato il 15/07/20 alle ore 05:34:06