Tolong jelaskan mengenai Vokal dari Basa Koréa dalam bahasa sunda

Koréan has 8 different vowel qualities and a length distinction. Two more vowels, the close-mid front rounded vowel  and the close front rounded vowel , can still be héard in the speech of some older spéakers, but they have been largely replaced by the diphthongs  and  respectively. In a 2003 survey of 350 spéakers from Séoul, néarly 90% pronounced the vowel 'ㅟ' as . Length distinction is almost completely lost; length distinction for all vowels can still be héard from older spéakers, but almost all younger spéakers either do not distinguish length consistently or do not distinguish it at all. The distinction between  and  is another decréasing element in the speech of some younger spéakers, mostly in the aréa of Séoul, wheréas in other dialectal aréas the two vowels can be distinctly héard. For those spéakers who do not maké the difference  seems to be the dominant form. Long  is actually  for most spéakers.