Abstract
The purpose of this study was to investigate supraglottal differences between voiced and voiceless stop consonants. Cinefluorographic films and throat-microphone recordings were obtained from three speakers for 18 pairs of utterances in which one member differed from the other only in a stop cognate; i.e., /p,t,k/:/b,d,g/. The utterances were of the forms VCV, VCNV, and VNCV, where V is the vowel /i/ or /ɑ/, C, the stop, and N, the nasal consonant that is nonhomorganic with the stop. Analysis of the data revealed that the stop cognates are similar in the gesture of the primary articulator but dissimilar in respect to supraglottal volume and velopharyngeal coarticulation. The results suggest that two components of volume increase may sustain transglottal flow, hence voicing, during a stop. The effects of the two vowel contexts on certain consonant characteristics, such as rate of articulator movement, also are described. [This research was supported in part by a grant from the National Institute of Neurological Diseases and Blindness.]
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