The Acoustic Research Of Vowel In Dongxiang Language

Each ethnic language is an important resource of the country. Dongxiang language is the national non-renewable, precious language resource. Its phonetic phenomenon is very unique, and compared with other languages, Dongxiang language has irreplaceable linguistic value. On previous study of Dongxiang language,people mainly use methods of conventional phonetics, but using the methods of experimental phonetics is still a gap. Therefore, the development of language resources about Dongxiang language by using the experimental phonetics technology is of great significance.We try to make some research on the basis of traditional phonetics, using the methods of experimental phonetics and the theory of sound pattern, to reveal vowel phonetic features in Dongxiang language. In this paper, with the help of experimental equipment and multi-speech analysis software3700, all of the recorded materials according to the thesaurus categories should be segmented respectively, so there are 4520 phonetic samples in total. After that, we can extract waveforms, spectrograms and formant charts. We can extract vowel acoustic parameters in spectrograms and establish Dongxiang language vowel parameter database. We extract vowel formants F1, F2, F3, and draw formant model chart, acoustic vowel chart and vowel pattern map according to a speaker's gender. We study vowel sound pattern in Dongxiang language from the acoustic perspective and verify the vowel phonology in Dongxiang language again.In the paper, we will reveal many of the phenomenon that can not be observed in the past.The research not only plays a positive role in the excavation and conservation of Dongxiang language, but opens up a new situation in the study of Dongxiang language.