EGG model of ditoneme in Mandarin

This paper concerns with the study of EGG (electroglottalgram by laryngograph) model of ditoneme in Mandarin. The parameters for establishing models are fundamental frequency (F0), which is regarded as reference, speed quotient and open quotient, which are all extracted from the EGG signal by using the software EGG.exe, an option of CSL, Model 4300B, KAY. The result shows that speed quotient and open quotient have close relationships with the F0 in different ditonemes. In general, speed quotient and open quotient will decrease, when F0 increases in sustained vowels. But in the ditonemes, speed quotient and open quotient show different natures according to the position and environment. The conclusion is that EGG models of ditonemes are composed of the patterns of F0, speed quotient and open quotient in Mandarin.