Bilabial trill
From Includipedia, the inclusionist encyclopedia
| It has been suggested that Voiceless dental bilabially trilled affricate be merged into this article or section. (Discuss) |
| IPA – number | 121 |
| IPA – text | ʙ |
| IPA – image | Image:Xsampa-Bslash.png |
| Entity | ʙ |
| X-SAMPA | B\ |
| Kirshenbaum | b<trl> |
| Sound sample | |
The bilabial trill is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ʙ, and the equivalent X-SAMPA symbol is B\.
In many of the languages where the bilabial trill occurs, it occurs only as part of a prenasalised bilabial stop with trilled release, [mbʙ]. This developed historically from a prenasalized stop before a relatively high back vowel, such as [mbu]. In such instances, these sounds are usually still limited to the environment of a following [u].
ʙ was a lowercase form of B in Jaŋalif and similar alphabets.
Features
Features of the bilabial trill:
- Its manner of articulation is 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 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.
Occurrence
| Language | Word | IPA | Meaning | Notes | |
|---|---|---|---|---|---|
| Baka | example needed | -- | |||
| Ngwe | Lebang dialect | [àʙɨ́ ́] | 'ash' | ||
| Kele | [mbʙuen] | 'its fruit' | |||
| Mangbetu | example needed | -- | contrasts with voiceless counterpart | ||
| Mewun | example needed | -- | contrasts with voiceless counterpart | ||
| Pirahã | example needed | -- | -- | allophone of /b/ before /o/ | |
| Yi | Liangshang dialect | example needed | -- | -- | |
See also
Template:Consonantsbr:Kensonenn diweuz dre froumal de:Stimmhafter bilabialer Vibrant fr:Consonne roulée bilabiale voisée it:Vibrante bilabiale ja:両唇ふるえ音 pl:Spółgłoska drżąca dwuwargowa sv:Bilabial tremulant zh:雙唇顫音
