5th International Conference on Spoken Language Processing
Data collected from Japanese and English showed that both phonetically fully voiced and (partially) devoiced allophones of /d/ have very similar perturbatory effect on the F0 of the following vowel. It is considered, therefore, that the phonetic voicing of /d/ (periodicity during the closure) is not clearly correlated with lower levels of F0 on the following vowel. Although the F0 perturbation may be caused by some aspects in the production of the preceding stop which is not necessarily manifested in actual vocal cord vibration, this result indicates that there is still a possibility that people may deliberately control the F0 of the following vowel as an additional cue to the phonological difference between voiceless and voiced stop consonants.
Bibliographic reference. Ishihara, Shunichi (1998): "Independence of consonantal voicing and vocoid F0 perturbation in English and Japanese", In ICSLP-1998, paper 0630.