声门爆破音起声时间的定量研究

Quantitatively Study of Voice Onset time——Glottal Stop

为了评价声门爆破音的音声特征,对10名正常语音者和14名腭裂术后及其他语音障碍患者的异常语音—/ka/,用语图仪、微电脑、听觉心理评定方法进行了研究,结果表明:正常语音组/Ka/的起声时间(下称VOT)值都大于20msec,平均是44.6msec,语音障碍组明显小于正常组,平均VOT值仅20.8msec。听觉心理评价与VOT值之间有着密切的关系。

To quantitatively evaluate the acoustic characteristics of glottal stop, pronounciation of/ka/in 10 normal subjects and 14 patients with cleft palates were analyzed by sound spectrography and 20 msec in all normal articulation of /ka/ with an average time of 44- 6 msec. In the test group of /ka/ demonstrated an average time of 20. 8 msec . The inverse correlation ship between VOT and the psyco - acoustical judgment for the degree of distor- tion was demonstrated to be significant.