Abstract
The production of bilabial and labiodental consonants requires a major articulatory constriction in the most anterior part of the vocal tract. This constriction is formed by the movements of the lips and mandible. Experiments were conducted to examine lip and mandible movements during the production of /p, b, m, f, v, w/ in a VCV context (V = /a/). Reflectors (< 1.3 mm in diameter) were placed on the subject's lips and on rigid wires attached to a mandibular tooth and the head. Reflector displacements on the midsagittal plane together with voice spectra were digitized and recorded every 10 msec. The locations of the reflectors with respect to the maxillary incisors were analyzed after correcting for head movements. Inter- and intrasound production characteristics of these consonants will be discussed according to the displacement and velocity values of lip and mandibular movements. [Supported by NIR Grant NS-11852-01A from NINDCDS.]
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