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Bilabial trill
*** Shopping-Tip: Bilabial trill
{{Infobox IPA| ipa-number=121| ipa=665| ipa-image=Xsampa-Bslash.png | xsampa=B\ | kirshenbaum=b<trl> |sound=bilabial trill.ogg}}
The '''bilabial trill''' is a type of
consonantal sound, used in some
speech spoken languages. The symbol in the
International Phonetic Alphabet that represents this sound is {{IPA|ʙ}}, and the equivalent
X-SAMPA symbol is
B\.
Features
Features of the bilabial trill:
* Its
manner of articulation is
trill consonant trill, which means it is produced by vibrations of the articulators. In most instances, it is only found as the trilled release of a
prenasalized stop.
* Its
place of articulation is
bilabial consonant bilabial which means it is articulated with both
lips.
* Its
phonation type is voiced, which means the vocal cords are vibrating during the articulation.
* It is an
oral consonant, which means air is allowed to escape through the mouth.
* It is a
central consonant, which means it is produced by allowing the airstream to flow over the middle of the tongue, rather than the sides.
* The
airstream mechanism is
pulmonic egressive, which means it is articulated by pushing air out of the
lungs and through the vocal tract, rather than from the
glottis or the mouth.
In English
English language English does not have a bilabial trill in any words. It does however use a rather loose bilabial trill to express that one is shivering cold, which is spelled ''brrr''.
In other languages
The bilabial trill exists as a phoneme in a few languages. In most of the languages where it occurs, it occurs only as a prenasalised bilabial stop with trilled release, {{IPA|[mbÊ™]}}. This developed historically from a prenasalized stop before a relatively high
back vowel, such as {{IPA.html">Kele language
Kele word {{IPA|[mbʙuen]}} "its fruit". The known exceptions to this pattern are in
Nias language Nias and the occasionally trilled fricative vowels of
Yi language Yi.
Some languages, such as
Mangbetu language Mangbetu (spoken in North-Eastern
Zaire) and
Mewun language Mewun (spoken in
Vanuatu), may have both
voiced consonant voiced and
voiceless consonant voiceless bilabial trill.
Amuzgo language Amuzgo
Amuzg has the bilabial trill, but uses it only exceptionally.
Baka language Baka
Baka (spoken in
Vanuatu) has the bilabial trill, but it is used rarely.
Northwest Caucasian languages
In
Abkhaz language Abkhaz and
Ubykh language Ubykh, the "affricates" {{IPA|[tʙ tʙ’ dʙ]}} are
allophones of {{IPA|/tʷ tʷ’ dʷ/}}.
Pirahã language Pirahã
In Pirahã, the bilabial trill is an allophone of /b/.
Yi language Yi
Liangshang (Cool Mountain) Yi has two "buzzed" or fricative vowels, written á¹³, i̤, which may also be trilled, {{IPA|[Ê™Ì?, rÌ?]}}.
External links
-
Linguist List posting about languages that have bilabial trill
See also
*
Voiceless dental bilabially trilled affricate
*
List of phonetics topics
{{Consonants}}
Category:Trills
Category:Bilabial consonants
de:Stimmhafter bilabialer Vibrant
fr:Consonne roulée bilabiale voisée
ja:両唇�る�音
pl:Spółgłoska drżąca dwuwargowa
sv:Bilabial tremulant
*** Shopping-Tip: Bilabial trill
