Voiced bilabial fricative
Voiced bilabial fricative |
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β |
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IPA number |
127 |
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Encoding |
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Entity (decimal) |
β |
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Unicode (hex) |
U+03B2 |
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X-SAMPA |
B |
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Kirshenbaum |
B |
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Braille |
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Sound |
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source · help |
Voiced bilabial approximant |
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β̞ |
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Sound |
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The voiced bilabial fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨β⟩, and the equivalent X-SAMPA symbol is ⟨B⟩. The symbol ⟨β⟩ is the Greek letter beta. This symbol is also sometimes used to represent the bilabial approximant, though that is more clearly written with the lowering diacritic, ⟨β̞⟩. The bilabial fricative is diachronically unstable and is likely to shift to [v].[1] In the English language, this sound is not used, but can be made by approximating the normal "v" sound between the two lips.
Features
Features of the voiced bilabial fricative:
- 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.
Occurrence
In the following transcriptions, the undertack diacritic may be used to indicate an approximant [β̞].
See also
References
Bibliography
- Cruz-Ferreira, Madalena (1995), "European Portuguese", Journal of the International Phonetic Association 25 (2): 90–94, doi:10.1017/S0025100300005223
- Engstrand, Olle (2004), Fonetikens grunder (in Swedish), Lund: Studenlitteratur, ISBN 91-44-04238-8
- Gussenhoven, Carlos; Aarts, Flor (1999), "The Dialect of Maastricht", Journal of the International Phonetic Association 29 (2): 155–166, doi:10.1017/S0025100300006526
- Hayward, Katrina; Hayward, Richard J. (1999), "Amharic", Handbook of the International Phonetic Association: A guide to the use of the International Phonetic Alphabet, Cambridge: Cambridge University Press, pp. 45–50, doi:10.1017/S0025100300004874, ISBN 0-521-65236-7
- Hualde, José Ignacio (1991), Basque phonology, New York: Routledge, ISBN 978-0-415-05655-7
- Krech, Eva Maria; Stock, Eberhard; Hirschfeld, Ursula; Anders, Lutz-Christian (2009), Deutsches Aussprachewörterbuch, Berlin, New York: Walter de Gruyter, ISBN 978-3-11-018202-6
- Ladefoged, Peter (2005), Vowels and Consonants (Second ed.), Blackwell
- Merrill, Elizabeth (2008), "Tilquiapan Zapotec", Journal of the International Phonetic Association 38 (1): 107–114, doi:10.1017/S0025100308003344
- Martínez-Celdrán, Eugenio; Fernández-Planas, Ana Ma.; Carrera-Sabaté, Josefina (2003), "Castilian Spanish", Journal of the International Phonetic Association 33 (2): 255–259, doi:10.1017/S0025100303001373
- Mateus, Maria Helena; d'Andrade, Ernesto (2000), The Phonology of Portuguese, Oxford University Press, ISBN 0-19-823581-X
- Okada, Hideo (1991), "Japanese", Journal of the International Phonetic Association 21 (2): 94–97, doi:10.1017/S002510030000445X
- Peters, Jörg (2006), "The dialect of Hasselt", Journal of the International Phonetic Association 36 (1): 117–124, doi:10.1017/S0025100306002428
- Picard, Marc (1987), "On the Palatalization and Fricativization of W", International Journal of American Linguistics 53 (3): 362–365, doi:10.1086/466063
- Pope, Mildred (1966), From Latin to Modern French, Manchester: Manchester University Press
- Wheeler, Max W (2005), The Phonology Of Catalan, Oxford: Oxford University Press, ISBN 0-19-925814-7
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— Where symbols appear in pairs, left–right represent the voiceless–voiced consonants. |
— Shaded areas denote pulmonic articulations judged to be impossible. |
— Symbols marked with an asterisk (*) are not defined in the IPA. |
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- Pulmonics
- Non-pulmonics
- Affricates
- Co-articulated
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