基于EPG的藏语夏河话舌尖后音腭位研究

Research on Xiahe Tibetan Blade-palatal from Perspective of EPG

文章用EPG对藏语夏河话3个舌尖后音后接元音/a、、u/进行录音,通过相关软件,提取它们的AC、PC、VC、Ant、Pst、CA、CP、CC、TC、Cog参数进行分析.得出以下结论:舌尖后音发音时舌体表现为两端高,中间低的"马鞍形"特点,对应齿龈后/硬腭前的位置,舌体有抬高的动作.擦音的发音动作与塞擦音成阻时段的动作不同,擦音舌面高度低于塞擦音成阻时段的舌面高度;送气特征对塞擦音的目标腭位没有显著影响;元音不影响舌尖前音的主发音器官的动作,但是舌面高度却受到元音舌位高度的影响,后接低元音的时候舌面下降.使用EPG记录发音时舌腭接触状态能够更客观更精确地记录和描写语音,丰富和修正传统语音学的若干解释和理论.

The paper aims at analyzing the contact between tongue and hard palate during production of Tibetan blade-palatal in Xiahe dialect by means of EPG.Their tongue characteristics of onset are obtained.The pronounce of blade-palatal have the characteristics of high in the both ends and low in the intermediate,which is called 'saddle'.In this process,corresponding the position of the back of gum/the front of palate,and body of tongue raises.The pronunciation action of fricative is different from affricate,the height of lingual surface of fricative is lower than affricates';Aspirated characteristic has no important influence on the target palate of affricate.Vowel doesn't influence the main Pronunciation organs of supradental,but influences the height of tongue surface,which wil decline when followed by low vowel.Using EPG to record the contact state of pronunciation can help recording and describing voice more objectively and more precisely,enriching and modifying some interpretation and theory.