A Study on Vowel Harmony of Shuluun HuhVatois in Modern Mongolian

In Shuluun Huh vatois of Modern Mongolian, long vowel maintains the law inherent in vowel harmony; but short vowel and weak form of vowel in derived syllable has the intent of centralization and neutralization while they also maintains the vowel harmony. Vowel in first syllable decide what kind of vowels followed by (high or low), and vowel in second syllable really influence the quality of following vowels, until the shift occurred between rounded and unrounded vowels. The term of YIN and YANG used in traditional phonetics refers to the high and low category of vowels divided by the boundary line of 600Hz in first formant. In Mongolian language, there are no frequent changes in degree of openness when the word being uttered, in the final analysis, it's a matter of convenience in articulation.