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Voiceless velar lateral fricative: Wikis

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The voiceless velar lateral fricative is a very rare speech sound that can be found in various forms (plain [ʟ̝̊], labialized [ʟ̝̊ʷ], fortis [ʟ̝̊ː], and labialized fortis [ʟ̝̊ːʷ]) in Archi, a Northeast Caucasian language of Dagestan, in which it is clearly a fricative, although further forward than velars in most languages, and might better be called prevelar. Archi also has a voiced fricative and voiceless and several ejective affricates at the same place of articulation, but no alveolar lateral fricatives or affricates.[1]

A voiceless velar lateral fricative also appears in syllable coda as an allophone of its (voiced) velar lateral fricative in Kuman.[2]

The IPA has no separate symbol for these sounds, but it can be transcribed as a devoiced raised velar lateral approximant, [ʟ̝̊], in which the devoicing ring diacritic is placed above the letter to avoid clashing with the raising diacritic. Furthermore, the "belt" of the voiceless alveolar lateral fricative on the symbol of the corresponding lateral approximant forms the basis for occasional ad hoc symbols for the other voiceless lateral fricatives:

Lateral fricatives.png

Indeed, SIL International has added these symbols to the Private Use Areas of their Charis and Doulos fonts, as U+F268 ().

References

Note that the first source uses the symbol for the voiceless alveolar lateral fricative ([ɬ]), but also indicates the sound to be prevelar.

  1. ^ http://www.archi.surrey.ac.uk/handout.pdf
  2. ^ Steed W. and Hardie, P. Acoustic Properties of the Kuman Voiceless Velar Lateral Fricative, Proceedings of the Australiasian Speech Science and Technology Conference 2004, Sydney. Source
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