A Study On F0 Contour Model Of Monosyllables And Disyllables In Standard Zhuang Language

This paprer is concerned with the study on F0 contour model of monosyllables and disyllables in Standard Zhuang Language. Based on the acoustic analysis of 1863 Monosyllables and 200 disyllables in Standard Zhuang Language, according to the different categories of Shushengyun and Cushengyun, the different tone, the voiceless-initial and voiced-initial, a F0 contour database for monosyllables and disyllables is built, based on the statistical analysis of F0 contour. Otherwise, this paper introduces a new method of removing the "offset-section and onset-section" and an automatic description method to describe the dynamic variation of the F0 contour.In this paper, four conclusions have been drawn : First, the segmentation of "offset-section and onset-section" can be removed effectively depending on the number and the positions of extreme points in the polynomial fitting expression of the F0 contour. Second, according to the number and the positions of extreme points, parameters of the length, frequency and slope can be calculated for each section, these parameters can be used in the dynamic F0 contour description. Third, the voiceless-initial and voiced-initial have a certain impact on the F0 contour, the voiced-initial have a lowering effect on F0. the voiceless-initial and voiced-initial have the fixed-frequency Starting values, and gradually slide to the vowel-frequency target value, in different circumstances to increase or decrease performance, which is based on the frequency of raising and lowering.Ending stop has a lowering effect obviously on F0. Four, the experiments of parameter synthesis show that this F0 contour model can be used to synthesize monosyllables and disyllables effectively.