基于EPG的蒙古语塞音、塞擦音研究

Research on the stops by dynamic palatogram in Mongolian

塞音、塞擦音的生理长度远远长于其声学长度。在总长度方面虽然没有明显的差别,但不送气音一般都比相应的送气音长。词首塞音和塞擦音都比相应的词尾塞音和塞擦音长。塞音和塞擦音在长度排列方面所存在的共性,可能代表它们的长度特点,而它们的因人而异的长度排列,可能显示了发音人的个性。从词首[th]/[t]和[(?)]/[(?)]的标志性舌腭接触面积变化图中可以看出,[th]/[t]辅音的舌位主要分布在齿区内,是舌尖上齿辅音。而[(?)]/[(?)]辅音的舌位主要分布在齿龈区内,是舌尖齿龈辅音。

Through the application of the EPG (KAY 6300 Electropalatogaph) and KAY Multi-speech 3700, the author analyzed the three phases of the stops: the approach, the hold and the release. The experimental analysis in the present study was based on a male speaker's materials (W). In addition, data gathered from other speaker, H, a male, was analyzed (the same number of words were used), in order to check the most striking results obtained from W utterances. The major part of the investigation concentrated on the comparison between the physiological and acoustical duration of the affricates and plosives, although the RCA (Ratio of tongue-palate Contact Area) of stops was also conducted.