The acoustics and kinematics of regularly timed speech: A database and method for the study of the p-center problem.

Number 1137
Year 1999
Drawer 21
Entry Date 12/03/1999
Authors Patel, A.D., Löfqvist, A. & Naito, W.
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Publication Proceedings of the XIVth International Congress of Phonetic Sciences, (pp.405-408). San Francisco, CA.
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Abstract The physical cues underlying the perception of temporal intervals in speech have yet to be firmly established. It has long been known that when speakers are asked to produce “evenly-timed” sequences of alternating syllables (e.g. ba-la-ba-la...) they introduce systematic deviations from onset-to-onset isochrony, showing that the perception of temporal intervals in speech is based on some cue other than syllable onsets. Identification of this cue would aid in measuring speech timing in a perceptually meaningful manner, benefiting both psycholinguistc and synthesis research. This study gathered a diverse set of regularly-timed syllable sequences from six speakers, and tested four acoustic and kinematic candidates for temporal iscohrony using a simple statistical method. While none of the cues showed isochrony, the database of speech and kinematic date (available from http://www.nsi.edu/users/patel) and method of analysis can be used by other researchers to evaluate proposed candidates for timing cues (“P-centers”) in speech.
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