Voiced Bilabial Trill
The voiced bilabial trill is a type of consonantal sound, used in some spoken languages.
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The symbol in the International Phonetic Alphabet that represents the sound is ⟨ʙ⟩, a small capital version of the Latin letter b, and the equivalent X-SAMPA symbol is B\.
| Voiced bilabial trill | |||
|---|---|---|---|
| ʙ | |||
| IPA Number | 121 | ||
| Audio sample | |||
| Encoding | |||
| Entity (decimal) | ʙ | ||
| Unicode (hex) | U+0299 | ||
| X-SAMPA | B\ | ||
| Braille |   | ||
| |||
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Features
Features of the voiced bilabial trill:
- Its manner of articulation is trill, which means it is produced by directing air over an articulator so that it vibrates. 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 is voiced, which means the vocal cords vibrate during the articulation.
- It is an oral consonant, which means air is allowed to escape through the mouth only.
- Because the sound is not produced with airflow over the tongue, the central–lateral dichotomy does not apply.
- The airstream mechanism is pulmonic, which means it is articulated by pushing air solely with the intercostal muscles and abdominal muscles, as in most sounds.
Varieties
| IPA | Description |
|---|---|
| ʙ | Voiced bilabial trill |
| ᵐʙ | Prenasalized voiced bilabial trill |
Occurrences
| Affiliation | Language | Word | IPA | Meaning | Notes | |
|---|---|---|---|---|---|---|
| Bantoid | Medumba | mʙʉ | [mʙʉ́][citation needed] | 'dog' | ||
| Ngwe | Lebang dialect | [àʙɨ́ ́] | 'ash' | |||
| Mura | Pirahã | kaoáíbogi | [kàò̯áí̯ʙòˈɡì] | 'evil spirit' | Allophone of /b/ before /o/ | |
| ʔíbogi | ⓘ | 'milk' | ||||
| Uralic | Komi-Permyak | Бунгаг | [ʙuŋɡaɡ] | 'dung beetle' | Generally paralinguistic. This is the only true word it is found in. | |
| Senu River | Kwomtari | [example needed] | ||||
| Skou | Sko | [example needed] | ||||
The Knorkator song "[Buchstabe]" (the actual title is a glyph) on the 1999 album Hasenchartbreaker uses a similar sound (though linguolabial instead of bilabial) to replace "br" in a number of German words (e.g. [ˈʙaːtkaɐ̯tɔfəln] for Bratkartoffeln).
Prenasalized
| Affiliation | Language | Word | IPA | Meaning | Notes | |
|---|---|---|---|---|---|---|
| Oceanic | Kele | [ᵐʙulim] | 'face' | And other languages of the Admiralty Islands | ||
| Titan | [ᵐʙutukei] | 'wooden plate' | ||||
| Unua | [ᵐʙue] | 'pig' | ||||
| Ahamb | [nãᵐʙwas] | 'pig' | Phonemic; contrasts between /ᵐʙ/ and /ʙ̥/. | |||
| Border | Kilmeri | [example needed] | ||||
Prestopped trills and stops with trill release
| Affiliation | Language | Word | IPA | Meaning | Notes |
|---|---|---|---|---|---|
| Naga | Sangtam | [t͡ʙàŋ] | 'needle' | Phonemic as /t͡ʙ/, contrasts with /t͡ʙ̥ʰ/. | |
| Qiangic | Lizu | TU, | [tʙ̩˥˩] | 'bean' | Syllabic; allophone of /u/ after initial /pʰ, p, b, tʰ, t, d/. |
| Namuyi | tbĭh | [t͡ʙ̩˨] | 'to slaughter' | Phonemic according to Pavlík (2017) occurring before /u/ or as a syllabic consonant. [ʙ] is classified as an allophone of /u/ following a /p/, /b/, /t/ or /d/ in the phonemic analysis of Huáng (1992:673–674), and Yǐn (2016). No bilabial trills are present in the phonemic analysis of Nishida (2013). | |
| dbù | [d͡ʙu˥˨] | 'wild' | |||
| pbĭh | [p͡ʙ̩] | 'to deliver' | |||
| [b͡ʙuda] | surname | ||||
| Pumi | biiv | [pʙ̩˥] | 'to dig' | Syllabic; allophone of /ə/ after /pʰ, p, b, tʰ, t, d/. | |
Phonology
In many of the languages in which the bilabial trill occurs, it occurs only as part of a prenasalized bilabial stop with trilled release, [mbʙ]. That developed historically from a prenasalized stop before a relatively high back vowel like [mbu]. In such instances, the sounds are usually still limited to the environment of a following [u]. However, the trills in Mangbetu may precede any vowel and are sometimes preceded by only a nasal.
See also
Notes
References
- Chirkova, Katia; Chen, Yiya (2013), "Lizu" (PDF), Journal of the International Phonetic Association, 43 (1): 75–86, doi:10.1017/S0025100312000242[permanent dead link]
- Dimock, Laura (2005). "The Bilabial Trill in Unua" (PDF). Wellington Working Papers in Linguistics. 17: 17–33. ISSN 1170-1978.
- Huáng, Bùfán, ed. (1992), 藏緬語族語言詞彙 [Tibeto-Burman language vocabulary] (in Chinese), Beijing: Minzu University Press
- Ladefoged, Peter (2005). Vowels and Consonants (Second ed.). Blackwell.
- Nishida, Fuminobu (2013). "Phonetics and Phonology of Dzolo Dialect of Namuyi". Arutesu Riberaresu / Artes Liberales. 92: 21–54. doi:10.15113/00013130.
- Pavlík, Štěpán (2017). The Description of Namuzi Language (Ph.D. thesis). Charles University. hdl:20.500.11956/95965.
- Yǐn, Wèibīn (2016), 納木茲語語法標註文本 [Grammar of Namuzi with Annotated Texts] (in Chinese), Beijing: Social Science Literature Press
External links
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