ⓘ Open front unrounded vowel

                                     

ⓘ Open front unrounded vowel

The open front unrounded vowel, or low front unrounded vowel, is a type of vowel sound, used in some spoken languages. It is one of the eight primary cardinal vowels, not directly intended to correspond to a vowel sound of a specific language but rather to serve as a fundamental reference point in a phonetic measuring system.

The symbol in the International phonetic alphabet IPA that represents this sound is ⟨ In ⟩, and a vowel in the IPA chart it is in the lower left corner. However, the accuracy of the quadrilateral vowel chart is disputed, and the sound was acoustically analyzed as an extra-open position when the front / back distinction lost its importance. There are also different interpretations of the precise quality of the vowel: the classic recordings by Daniel Jones a little more up front, but not so openly like that, John wells.

In practice, it is normal that many phoneticians use the symbol ⟨ In ⟩ for an open Central unrounded vowel and instead bring open front unrounded vowel with ⟨ æ ⟩, which means officially near-open front unrounded vowel. It is common practice, for example in a historical study of the English language. The loss of separate symbols for open and near-open vowel front row, generally considered to be unproblematic, because the difference in perception between the two is pretty small, and very few languages contrast the two. If there is a need to indicate backness of vowels as a whole, you can use the symbol ⟨ æ ⟩, which is lowered near-open front unrounded vowel.

In the Limburg dialect of Hamont was reported in contrast to the long, open front, Central and back unrounded vowels. This is extremely unusual.