Close-mid central unrounded vowel Close-mid central unrounded vowel The close-mid central unrounded vowel, or high-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is . This is a mirrored letter e, and should not be confused with the schwa , which is a turned e. It was added to the IPA in 1993; before that, this vowel was transcribed (Latin small letter e with umlaut, not Cyrillic small letter yo). Certain older sources transcribe this vowel . The letter may be used with a lowering diacritic ,
Close back unrounded vowel nor with , which is an unofficial symbol for the near-close back unrounded vowel. The symbol is sometimes used for Japanese , but that sound is rounded, albeit with labial compression rather than protrusion. It is more accurately described as an exolabial close back vowel. Close back unrounded vowel The close back unrounded vowel, or high back unrounded vowel, is a type of vowel sound used in some spoken languages. Acoustically it is a "close back-central unrounded vowel". The symbol in the International Phonetic Alphabet that represents this sound is . Typographically a turned letter "m", given its relation to