15th International Congress of Phonetic Sciences (ICPhS-15)
This study explores the articulatory realisation of vowel devoicing in Japanese, using the combined techniques of electropalatography (EPG) and electrolaryngography (Lx). Various spatiotemporal parameters were compared among syllables with a devoiced, voiced, and accented vowel. The EPG results show that, in the 'articulatory syllable' with a devoiced vowel, the duration of the consonantal constriction becomes longer and the following consonantal gesture is activated earlier. Consequently, the vocalic gesture for the devoiced vowel is contracted temporally. This time-dependent adjustment correlates with changes in prosody. The findings suggest that the vowel devoicing gesture is not confined within the larynx only.
Bibliographic reference. Nakamura, Mitsuhiro (2003): "The spatio-temporal effects of vowel devoicing on gestural coordination: an EPG study", In ICPhS-15, 3025-3028.