15th International Congress of Phonetic Sciences (ICPhS-15)

Barcelona, Spain
August 3-9, 2003

Effects of Rate on EMA-Derived Kinematic Parameters During Syllable and Sentence Productions

Mili S. Kuruvilla, Bruce E. Murdoch, Justine V. Goozee, Ross E. Darnell

University of Queensland, Australia

This paper is directed towards comparing the articulatory kinematic parameters used to increase speech rate at both the syllable and sentence level. The electromagnetic articulograph (AG100) was used to measure duration, velocity, acceleration and distance of tongue movements during speech produced by a group of young adults with perceptually acceptable speech. The speech tasks involved repetitions of the syllable /ta/ and /ka/ separately and also in the sentence "A tarp will cover a car". Each of these tasks was carried out at a moderate rate and then "as fast as possible". Different kinematic strategies were utilized to increase speech rate in syllable repetitions and sentences. A reduction in the distance travelled appeared to be the principal strategy involved in increasing rate at the syllable level. At the sentence level, the combination of a decrease in distance and an increase in maximum velocity were associated with the increase in speech rate.

Full Paper

Bibliographic reference.  Kuruvilla, Mili S. / Murdoch, Bruce E. / Goozee, Justine V. / Darnell, Ross E. (2003): "Effects of rate on EMA-derived kinematic parameters during syllable and sentence productions", In ICPhS-15, 3125-3128.