A front vowel is any in a class of vowel sound used in some spoken languages, its defining characteristic being that the highest point of the tongue is positioned in front in the mouth without creating a constriction that would make it a consonant. Front vowels are sometimes called bright vowels because they are perceived as sounding brighter than the back vowels. Near-front vowels are a type of front vowel. Rounded front vowels are centralized, that is, near-front in their articulation; this is one reason. The front vowels that have dedicated symbols in the International Phonetic Alphabet are: close front unrounded vowel close front compressed vowel near-close front unrounded vowel near-close front compressed vowel close-mid front unrounded vowel close-mid front compressed vowel open-mid front unrounded vowel open-mid front compressed vowel near-open front unrounded vowel open front unrounded vowel open front rounded vowel There are front vowels without dedicated symbols in the IPA: close front protruded vowel near-close front protruded vowel close-mid front protruded vowel mid front unrounded vowel or mid front compressed vowel or mid front protruded vowel or open-mid front protruded vowel As above, other front vowels can be indicated with diacritics of relative articulation applied to letters for neighboring vowels, such as ⟨i̞⟩, ⟨e̝⟩ or ⟨ɪ̟⟩ for a near-close front unrounded vowel.
In articulation, front retracted vowels. In this conception, front vowels are a broader category than those listed in the IPA chart, and, mid-central vowels. Raised or retracted vowels may be fronted by certain consonants, such as palatals and in some languages pharyngeals. For example, /a/ may be fronted to next to /j/ or /ħ/. In the history of many languages, for example French and Japanese, front vowels have altered preceding velar or alveolar consonants, bringing their place of articulation towards palatal or postalveolar; this change can be allophonic variation. This historical palatalization is reflected in the orthographies of several European languages, including the ⟨c⟩ and ⟨g⟩ of all Romance languages, the ⟨k⟩ and ⟨g⟩ in Norwegian, Swedish and Icelandic, the ⟨κ⟩, ⟨γ⟩ and ⟨χ⟩ in Greek. English without as much regularity. However, for native or early borrowed words affected by palatalization, English has altered the spelling after the pronunciation Back vowel List of phonetics topics
In phonetics, vowel roundedness refers to the amount of rounding in the lips during the articulation of a vowel. It is labialization of a vowel; when a rounded vowel is pronounced, the lips form a circular opening, unrounded vowels are pronounced with the lips relaxed. In most languages, front vowels tend to be unrounded, back vowels tend to be rounded. However, some languages, such as French and German, distinguish rounded and unrounded front vowels of the same height, Vietnamese distinguishes rounded and unrounded back vowels of the same height. Alekano has only unrounded vowels. In the International Phonetic Alphabet vowel chart, rounded vowels are the ones that appear on the right in each pair of vowels. There are diacritics, U+0339 ̹ COMBINING RIGHT HALF RING BELOW and U+031C ̜ COMBINING LEFT HALF RING BELOW, to indicate greater and lesser degrees of rounding, respectively. There are two types of vowel rounding: compression. In protruded rounding, the corners of the mouth are drawn together and the lips protrude like a tube, with their inner surface visible.
In compressed rounding, the corners of the mouth are drawn together, but the lips are drawn together horizontally and do not protrude, with only their outer surface visible. That is, in protruded vowels the inner surfaces of the lips form the opening, whereas in compressed vowels it is the margins of the lips which form the opening. Observes that back and central rounded vowels, such as German /o/ and /u/, are protruded, whereas front rounded vowels such as German /ø/ and /y/ are compressed. Back or central compressed vowels and front protruded vowels are uncommon, a contrast between the two types has been found to be phonemic in only one instance. There are no dedicated IPA diacritics to represent the distinction, but the superscript IPA letter ⟨◌ᵝ⟩ can be used for compression and ⟨◌ʷ⟩, ⟨◌ᶣ⟩ or ⟨◌̫⟩ for protrusion. Compressed vowels may be pronounced either with the corners of the mouth drawn in, by some definitions rounded, or with the corners spread and, by the same definitions, unrounded.
The distinction may be transcribed ⟨ɨᵝ ɯᵝ⟩ and ⟨ʉᵝ uᵝ⟩. The distinction between protruded and compressed holds for the semivowels and as well as labialization. In Akan, for example, the is compressed, as are labio-palatalized consonants as in Twi "Twi" and adwuma "work", whereas and labialized consonants are protruded. In Japanese, the /w/ is compressed rather than protruded, paralleling the Japanese /u/; the distinction applies marginally to other consonants. In Southern Teke, the sole language reported to have a phonemic /ɱ/, the labiodental sound is "accompanied by strong protrusion of both lips", whereas the found as an allophone of /m/ before /f, v/ in languages such as English is not protruded, as the lip contacts the teeth along its upper or outer edge. In at least one account of speech acquisition, a child's pronunciation of clown involves a lateral with the upper teeth contacting the upper-outer edge of the lip, but in crown, a non-lateral is pronounced with the teeth contacting the inner surface of the protruded lower lip.
Some vowels transcribed with rounded IPA letters may not be rounded at all. An example is /ɒ/, which in English has little if any rounding of the lips; the "throaty" sound of English /ɒ/ is instead accomplished with sulcalization, a furrowing of the back of the tongue found in non-rhotic /ɜː/. It is possible to mimic the acoustic effect of rounded vowels by narrowing the cheeks, so-called "cheek rounding", inherent in back protruded vowels; the technique is used by ventriloquists to mask the visible rounding of back vowels like. It is not clear; the central and the back have not been reported to occur in any language. The lip position of unrounded vowels may be classified into two groups: neutral. Front vowels are pronounced with the lips spread, the spreading becomes more significant as the height of the vowel increases. Open vowels are neutral, i.e. neither rounded nor spread, because the open jaw allows for limited rounding or spreading of the lips. This is reflected in the IPA's definition of the cardinal, unrounded yet not spread either.
Protruded rounding is the vocalic equivalent of consonantal labialization. Thus, rounded vowels and labialized consonants affect one another by phonetic assimilation: Rounded vowels labialize consonants, labialized consonants round vowels. In many languages, such effects are minor phonetic detail. For example, in Standard Chinese, the vowel /ɔ/ is pronounced after labial consonants, an allophonic effect, so important that it is encoded in pinyin transliteration: alveolar /tu̯ɔ˥˥/'many' vs. labial /pu̯ɔ˥˥/'wave'. In Vietnamese, the opposite assimilation takes place: velar codas /k/ and /ŋ/ are pronounced as labialized and or labial-velar and, after the rounded vowels /u/ and /o/. In the Northwest Caucasian languages of the Caucasus and the Sepik languages of Papua New Guinea rounded vowels have become unrounded, with the rounding being taken up by the consonant, thus and are phonemically /kwɨ/ and /kwə/. In the extinct Ubykh, were phonemically /kʷə/ and /kʷa/. A few ancient Indo-European languages like Latin had labiovelar consonants.
It is rare for accents of English to differentiate vowels only by their roundedness. Minimal pairs like this can be found in some British dialects (such as the Cardiff dialect, Geordie and P
A vowel is one of the two principal classes of speech sound, the other being a consonant. Vowels vary in quality, in loudness and in quantity, they are voiced, are involved in prosodic variation such as tone and stress. Vowel sounds are produced with an open vocal tract; the word vowel comes from the Latin word vocalis, meaning "vocal". In English, the word vowel is used to refer both to vowel sounds and to the written symbols that represent them. There are two complementary definitions of one phonetic and the other phonological. In the phonetic definition, a vowel is a sound, such as the English "ah" or "oh", produced with an open vocal tract. There is no significant build-up of air pressure at any point above the glottis; this contrasts with consonants, such as the English "sh", which have a constriction or closure at some point along the vocal tract. In the phonological definition, a vowel is defined as syllabic, the sound that forms the peak of a syllable. A phonetically equivalent but non-syllabic sound is a semivowel.
In oral languages, phonetic vowels form the peak of many or all syllables, whereas consonants form the onset and coda. Some languages allow other sounds to form the nucleus of a syllable, such as the syllabic l in the English word table or the syllabic r in the Serbo-Croatian word vrt "garden"; the phonetic definition of "vowel" does not always match the phonological definition. The approximants and illustrate this: both are without much of a constriction in the vocal tract, but they occur at the onset of syllables which suggests that phonologically they are consonants. A similar debate arises over whether a word like bird in a rhotic dialect has an r-colored vowel /ɝ/ or a syllabic consonant /ɹ̩/; the American linguist Kenneth Pike suggested the terms "vocoid" for a phonetic vowel and "vowel" for a phonological vowel, so using this terminology, are classified as vocoids but not vowels. However and Emmory demonstrated from a range of languages that semivowels are produced with a narrower constriction of the vocal tract than vowels, so may be considered consonants on that basis.
Nonetheless, the phonetic and phonemic definitions would still conflict for the syllabic /l/ in table, or the syllabic nasals in button and rhythm. The traditional view of vowel production, reflected for example in the terminology and presentation of the International Phonetic Alphabet, is one of articulatory features that determine a vowel's quality as distinguishing it from other vowels. Daniel Jones developed the cardinal vowel system to describe vowels in terms of the features of tongue height, tongue backness and roundedness; these three parameters are indicated in the schematic quadrilateral IPA vowel diagram on the right. There are additional features of vowel quality, such as the velum position, type of vocal fold vibration, tongue root position; this conception of vowel articulation has been known to be inaccurate since 1928. Peter Ladefoged has said that "early phoneticians... thought they were describing the highest point of the tongue, but they were not. They were describing formant frequencies."
The IPA Handbook concedes that "the vowel quadrilateral must be regarded as an abstraction and not a direct mapping of tongue position."Nonetheless, the concept that vowel qualities are determined by tongue position and lip rounding continues to be used in pedagogy, as it provides an intuitive explanation of how vowels are distinguished. Vowel height is named for the vertical position of the tongue relative to either the roof of the mouth or the aperture of the jaw. However, it refers to the first formant, abbreviated F1, associated with the height of the tongue. In close vowels known as high vowels, such as and, the first formant is consistent with the tongue being positioned close to the palate, high in the mouth, whereas in open vowels known as low vowels, such as, F1 is consistent with the jaw being open and the tongue being positioned low in the mouth. Height is defined by the inverse of the F1 value: The higher the frequency of the first formant, the lower the vowel; the International Phonetic Alphabet defines seven degrees of vowel height, but no language is known to distinguish all of them without distinguishing another attribute: close near-close close-mid mid open-mid near-open open The letters are used for either close-mid or true-mid vowels.
However, if more precision is required, true-mid vowels may be written with a lowering diacritic. The Kensiu language, spoken in Malaysia and Thailand, is unusual in that it contrasts true-mid with close-mid and open-mid vowels, without any difference in other parameters like backness or roundness. Although English contrasts six heights in its vowels, they are interdependent with differences in backness, many are parts of diphthongs, it appears that some varieties of German have five vowel heights that contrast independently of length or other parameters. The Bavarian dialect of Amstetten h