The vowel chart in Chinese consists of a series of vowel sounds. For example, “a” is pronounced as /ɑː/, “o” as /oʊ/, “e” as /ɤ/, “i” as /iː/, “u” as /uː/, “ü” as /yː/. These are the main single vowels. There are also compound vowels like “ai” pronounced as /aɪ/, “ei” as /eɪ/, “ui” as /uːɪ/, and so on. The nasal vowels include “an” /æn/, “en” /ən/, “in” /in/, “un” /uən/, “ün” /yn/. Understanding the pronunciations of these vowels is essential for learning Chinese pronunciation.