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The voiceless alveolar lateral fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents voiceless dental, alveolar, and postalveolar fricatives is ɬ, and the equivalent X-SAMPA symbol is K. The symbol ɬ is called "belted l" and should not be confused with "l with tilde", [ɫ], which corresponds to a different sound, the velarized alveolar lateral approximant. It should also be distinguished from a voiceless alveolar lateral approximant, although the fricative is sometimes incorrectly described as a "voiceless l", a description fitting only of the approximant. The sound is relatively rare among the world's languages, but common among Native American languages, such as Navajo. [1] Welsh is perhaps the best-known example of a language with this sound [2] (it is indicated in Welsh orthography with a doubled "l").
[edit] Features
Features of the voiceless alveolar lateral fricative:
- Its manner of articulation is fricative, which means it is produced by constricting air flow through a narrow channel at the place of articulation, causing turbulence.
- Its place of articulation is alveolar, which means it is articulated with either the tip or the blade of the tongue against the alveolar ridge, termed respectively apical and laminal.
- Its phonation type is voiceless, which means it is produced without vibrations of the vocal cords.
- It is an oral consonant, which means air is allowed to escape through the mouth.
- It is a lateral consonant, which means it is produced by allowing the airstream to flow over the sides of the tongue, rather than the middle of the tongue.
- 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.
[edit] Occurrence
[edit] Semitic languages
The sound is conjectured as a phoneme for Proto-Semitic, usually transcribed as ś; it has evolved into Arabic [ʃ], Hebrew, [s]:
Amongst Semitic languages, the sound still exists in contemporary Soqotri[citation needed] and Mehri [3]. In Ge'ez, it is written with the letter Śawt[citation needed].
[edit] References
- ^ Laver, John (1994). Principles of Phonetics. Cambridge: Cambridge University Press, pages 257-258. ISBN 052145655X.
- ^ Ladefoged, Peter (1996). The Sounds of the World's Languages. Oxford: Blackwell, page 203. ISBN 0631198156.
- ^ Howe, Darin (2003). Segmental Phonology. University of Calgary, page 22.
[edit] See also
This is an extract from Wikipedia, the Free Encyclopedia
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