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Voice onset time versus articulatory modeling for stop consonants
1Department of Electrical and Computer Engineering, Syracuse University, Syracuse, New York, USA. mrothenberg@glottal.com
Logopedics, Phoniatrics, Vocology
|June 11, 2009
Summary
Voice onset time (VOT) is useful for speech synthesis but not for analyzing actual speech. A physiological model better explains stop consonant articulation using laryngeal, articulatory, and respiratory gestures.
Area of Science:
- Phonetics
- Speech Science
- Acoustic Phonetics
Background:
- Voice onset time (VOT) was initially developed for speech synthesis.
- Problems arose when using VOT to analyze actual spoken language.
- Aerodynamic and physiological parameters were previously used.
Purpose of the Study:
- To evaluate the suitability of Voice onset time (VOT) for analyzing actual speech.
- To present an alternative physiological model for speech articulation.
- To clarify the appropriate application of the VOT parameter.
Main Methods:
- Reviewed the historical development and application of the VOT parameter.
- Sketched a representative physiological model of speech articulation from the same era.
- Compared VOT with physiological parameters for analyzing English stop consonants.
Main Results:
- Voice onset time (VOT) is effective for speech synthesis but problematic for analyzing actual speech.
- A physiological model, considering laryngeal, articulatory, and respiratory gestures, offers a more accurate explanation of stop consonant articulation.
- The duration, timing, and extent of these gestures determine the manner of articulation.
Conclusions:
- The term Voice onset time (VOT) should be restricted to its original use in speech synthesis.
- VOT is not a suitable parameter for the analysis of actual spoken language.
- Physiological models provide a more comprehensive framework for understanding speech articulation.
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