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Where symbols appear in pairs, the one to the right represents
a rounded vowel. Vowel length is indicated by appending ː
The close back rounded vowel is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is u, and the equivalent X-SAMPA symbol is u.
In most languages this rounded vowel is pronounced with protruded lips ('endolabial'). However, in a few cases the lips are compressed ('exolabial').
Close back protruded vowel
In most languages, closed back rounded vowels are pronounced with protruded lips.
Features
- Its vowel height is close, which means the tongue is positioned as close as possible to the roof of the mouth without creating a constriction that would be classified as a consonant.
- Its vowel backness is back, which means the tongue is positioned as far back as possible in the mouth without creating a constriction that would be classified as a consonant.
- Its roundedness is protruded, which means that the corners of the lips are drawn together, and the inner surfaces exposed.
Occurrence
Note: Since back rounded vowels are assumed to have protrusion, and few descriptions cover the distinction, some of the following may actually have compression.
Close back compressed vowel
Some languages, such as Japanese listen (help·info) and Swedish,[18] are found with a close back vowel that has a distinct type of rounding, called compressed or exolabial. No language is known to contrast this with the more typical protruded (endolabial) close back vowel.
As there is no official diacritic for compression in the IPA, the spread-lip diacritic [ ͍ ] will be used here with the rounded vowel [u] as an ad hoc symbol. Other possible transcriptions are [ɯ͡β̞] (simultaneous [ɯ] and labial compression) and [ɯβ] ([ɯ] modified with labial compression).
Features
- Its vowel height is close, which means the tongue is positioned as close as possible to the roof of the mouth without creating a constriction that would be classified as a consonant.
- Its vowel backness is back, which means the tongue is positioned as far back as possible in the mouth without creating a constriction that would be classified as a consonant.
- Its roundedness is compressed, which means that the margins of the lips approach one another, so that the inner surfaces are not exposed.
Occurrence
See also
References
Bibliography
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- Merrill, Elizabeth (2008), "Tilquipan Zapotec", Journal of the International Phonetic Association 38 (1): 107–114
- Roach, Peter (2004), "British English: Received Pronunciation", Journal of the International Phonetic Association 34 (2): 239–245
- Rogers, Derek; d'Arcangeli, Luciana (2004), "Italian", Journal of the International Phonetic Association 34 (1): 117–121
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