(Redirected from Labio-velar)The term 'labiovelar' is ambiguous. It may mean
labial-velar (a
consonant made at two
places of articulation, one at the lips and the other at the soft palate), or it may mean
labialized velar (a consonant with an
approximant-like
secondary articulation).
When the manner of articulation is a
plosive,
nasal stop, or
fricative, these are quite different. ''Labialized velars'' include , which are pronounced like a but with rounded lips. ''Labial-velars'' are less common, occurring principally in West and Central Africa, and include , which are pronounced like a simultaneous [k] and [p], [g] and [b], and and . Labial-velar fricatives are not thought to be possible, since it is difficult to control the airstream precisely enough to produce frication at two places of articulation, and in any case the sound of the forward articulation would mask the other. ( is not actually a fricative, but rather a voiceless approximant, and in any case is labialized, not labial-velar.)
See
labial-velar consonant.
Labialized velar approximants
The most common labiovelar consonant is the voiced approximant . This is normally a labialized velar, as is its vocalic cousin . (Labialization is called
rounding in vowels, and a velar place is called
back.) However, languages such as
Japanese and perhaps the Northern
Iroquoian languages have something closer to a true
labial-velar approximant, where the lips come together. In close transcription, the symbol may be avoided in such cases, or it may be used with an under-rounding diacritic, as .
and its voiceless equivalent are the only labialized velars with dedicated IPA symbols:
1In
dialects that distinguish between ''which'' and ''witch''.
The voiceless approximant is traditionally called a "voiceless labial-velar fricative", but true
doubly articulated fricatives are not known to be used in any language, as they are quite difficult to pronounce and even more to aurally distinguish. (However, very occasionally the symbol is used for a labialized velar fricative, . This usage is not approved by the
IPA.)
See also
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Labial-velar consonant
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Labialisation
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Doubly articulated consonant
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Co-articulated consonant
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Proto-Indo-European language
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Yazgulyam language