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Titolo:
Variation in anticipatory coarticulation with changes in clarity and rate
Autore:
Matthies, M; Perrier, P; Perkell, JS; Zandipour, M;
Indirizzi:
MIT, Speech Commun Grp, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139 IT, Speech Commun Grp, Cambridge, MA 02139 USA Boston Univ, Dept Cognit & Neural Syst, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 ognit & Neural Syst, Boston, MA 02215 USA MIT, Dept Brain & Cognit Sci, Cambridge, MA 02139 USA MIT Cambridge MA USA 02139 pt Brain & Cognit Sci, Cambridge, MA 02139 USA Inst Natl Polytech Grenoble, Inst Commun Parlee, F-38031 Grenoble, France Inst Natl Polytech Grenoble Grenoble France F-38031 031 Grenoble, France Boston Univ, Dept Commun Disorders, Boston, MA 02215 USA Boston Univ Boston MA USA 02215 pt Commun Disorders, Boston, MA 02215 USA
Titolo Testata:
JOURNAL OF SPEECH LANGUAGE AND HEARING RESEARCH
fascicolo: 2, volume: 44, anno: 2001,
pagine: 340 - 353
SICI:
1092-4388(200104)44:2<340:VIACWC>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
EQUILIBRIUM-POINT HYPOTHESIS; TO-VOWEL COARTICULATION; SPEECH MOTOR CONTROL; SPEAKING RATE; MOVEMENTS; SEQUENCES; MODEL;
Keywords:
coarticulation; speaking rate; clarity; speech motor control; articulatory measurement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Matthies, M MIT, Speech Commun Grp, Room 36-543,50 Vassar St, Cambridge, MA 02139 USA MIT Room 36-543,50 Vassar St Cambridge MA USA 02139 02139 USA
Citazione:
M. Matthies et al., "Variation in anticipatory coarticulation with changes in clarity and rate", J SPEECH L, 44(2), 2001, pp. 340-353

Abstract

This study tests the hypothesis that the relative timing, or coarticulation, of articulatory movements at VC and CV boundaries is influenced by both the listener's requirement for clarity and the speaker's strategy to economize effort. Movement and acoustic data were collected from 7 subjects who spoke in three conditions: normal, clear, and fast. it was predicted that fast speech would show more coarticulation and clear speech would show less coarticulation than normal speech. The speech materials were designed to investigate coarticulation in the movements of the upper lip and tongue. They consisted of repetitions of [iC(n)U] utterances embedded in carrier phrases, where the number of consonants, n, ranged from 1 to 3. Analyses focused on kinematic measures and the amount of coarticulation (overlap) of the /i-u/ transition movement with the acoustic interval of the /i/. The consonant-string duration was longest in the clear speaking condition and shortest inthe fast condition. Compared to the normal condition, peak velocities werehigher in the fast and clear speaking conditions, indicating increased effort. The influences of speaking condition on coarticulation and on the formants of the /i/ were small. Thus, even though there was evidence of increased effort in the clear and fast conditions, the hypothesized effects of a trade-off between clarity and economy of effort were minimally evident in formant values for /i/ and measures of coarticulation.

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Documento generato il 10/07/20 alle ore 00:23:08