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In linguistics, vowel length is the perceived length of a vowel sound: the corresponding physical measurement is duration.In some languages vowel length is an important phonemic factor, meaning vowel length can change the meaning of the word, for example in Arabic, Czech, Dravidian languages (such as Tamil), some Finno-Ugric languages (such as Finnish and Estonian), Japanese, Kyrgyz, Samoan ...
name height backness roundness IPA number IPA text IPA image Entity X-SAMPA Sound sample Close front unrounded vowel: close: front: unrounded: 301: i i i Sound sample
Tongue positions of cardinal front vowels, with highest point indicated. The position of the highest point is used to determine vowel height and backness. X-ray photos show the sounds [i, u, a, ɑ]. The IPA defines a vowel as a sound which occurs at a syllable center. [69] Below is a chart depicting the vowels of the IPA.
Usually, there is a pattern of even distribution of marks on the chart, a phenomenon that is known as vowel dispersion. For most languages, the vowel system is triangular. Only 10% of languages, including English, have a vowel diagram that is quadrilateral. Such a diagram is called a vowel quadrilateral or a vowel trapezium. [2]
/ɪə/ is shown here as a long monophthong [ɪː]. The vowels of Australian English can be divided according to length. The long vowels, which include monophthongs and diphthongs, mostly correspond to the tense vowels used in analyses of Received Pronunciation (RP) as well as its centring diphthongs. The short vowels, consisting only of ...
Mid central vowel release ̽: Mid-centralized ̝ ˔ Raised ᶿ Voiceless dental fricative release ̩ ̍: Syllabic ̞ ˕ Lowered ˣ: Voiceless velar fricative release ̯ ̑: Non-syllabic ̘ ꭪ Advanced tongue root ʼ: Ejective ˞ Rhoticity ̙ ꭫ Retracted tongue root ͡ ͜ Affricate or double articulation
The Mixe languages are widely considered to have three distinctive levels of vowel length, [1] as do Estonian, some Low German varieties in the vicinity of Hamburg [2] and some Moselle Franconian [3] and Ripuarian Franconian varieties. Strictly speaking, a pair of a long sound and a short sound should be identical except for their length.
There are two complementary definitions of vowel, one phonetic and the other phonological.. In the phonetic definition, a vowel is a sound, such as the English "ah" / ɑː / or "oh" / oʊ /, produced with an open vocal tract; it is median (the air escapes along the middle of the tongue), oral (at least some of the airflow must escape through the mouth), frictionless and continuant. [4]