Keefe M J, Dalston R M
University of North Carolina, Chapel Hill.
J Speech Hear Res. 1989 Mar;32(1):39-48. doi: 10.1044/jshr.3201.39.
Using a microcomputer interface and dedicated software, a photodetector was employed to collect data on the timing of velopharnygeal movements during the production of speech by 10 normally speaking adult subjects. The duration of velopharnygeal closing gestures varied consistently across productions of /m/, /n/ and /n/ in both normal and fast speech. Velopharyngeal opening movements also appeared to be affected by the nasal consonant that was produced. These phenomena are explained in terms of biomechanical constraints known to act upon the velopharyngeal mechanism.
使用微机接口和专用软件，一个光电探测器被用来收集10名正常说话的成年受试者在言语产生过程中腭咽运动时间的数据。在正常语速和快速语速下，/m/、/n/和/ŋ/发音过程中腭咽闭合动作的持续时间始终存在差异。腭咽张开动作似乎也受到所发出鼻辅音的影响。这些现象是根据已知作用于腭咽机制的生物力学限制来解释的。
