Acoustic research on long and short vowels in tibetan Lhasa dialect

Long and short vowels in Lhasa dialect is an important language phenomenon. In early studies, the long and short vowels are studied with long and short tones together as one kind of phenomena. Taking Lhasa dialect as an example, this paper summed up the similarities and differences between long and short vowels through statistical analysis and comparison of the two kinds of vowels from the aspects of articulation manners, tone quality, fundamental frequency and duration. On this basis, the paper discussed the role that the length of vowels played on the phonemes system.