I noticed that sometimes certain finals in Chinese sound differently when combined with different initials. For e.g., what is spelled "u" sometimes is pronounced "ü". Other times, I think the final "i" sounds differently when combined with different initials. Is there a list of rules explaining all of these differences within standard Mandarin?
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One of the easiest ways to hear the different pinyin sounds is to look on YouTube. The trickiest ones for me to learn were the different pronunciations of "i". Here are some videos that explain the differences:
There are lots more YouTube videos about pinyin sounds. There's also a good chart at pinyin.com with all the changes described. This table at quickmandarin.com will play the sounds for you if you click on one of them. It covers the tones as well. |
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The pronunciations of finals do not change when used after different finals, with perhaps only one exception: 'i'. It has three variations: 'zi ci si', 'zhi chi shi ri', and all others. NOTE: Not many Chinese know the differences, but you can compare:
The three english /ee/ in the above word are the same, but the three Chinese i are all different. However, the spellings of the finals do change when used after different initials. The details can be found in 汉语拼音方案 (the Scheme for the Chinese Phonetic Alphabet), which is the official standard for Chinese pinyin. For the example mentioned by the OP, 'ü' will be written as 'u' after 'j' 'q' and 'x'. ('u' will never be used after 'j' 'q' or 'x') NOTE2: I don't know whether the full detail of the scheme is appropriate for beginners. There are two links in Chinese: 汉典 BaiduBaike |
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I think one of the reasons is the loss of tone and/or stress in the syllable. But see this table, "Chinese (Mandarin)/Pronunciation of Finals", it provides a good summary of the changes. |
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