Voiced epiglottal fricative
Consonantal sound represented by ⟨ʢ⟩ in IPA
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A voiced epiglottal fricative, or voiced pharyngeal trill,[1] is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is ⟨ʢ⟩.
| Voiced epiglottal fricative | |||
|---|---|---|---|
| ʢ | |||
| IPA number | 174 | ||
| Audio sample | |||
| Encoding | |||
| Entity (decimal) | ʢ | ||
| Unicode (hex) | U+02A2 | ||
| X-SAMPA | <\ | ||
| Braille |   | ||
| |||
Although the official name in the IPA for this sound has always been a voiced epiglottal fricative since it was introduced in 1989, laryngoscopic studies by John Esling have found that both epiglottal and pharyngeal consonants are pharyngeal in place of articulation, and are affected in manner by the aryepiglottic folds and larynx height; he therefore proposed the reclassification of ⟨ʢ⟩ as the trilled counterpart of ⟨ʕ⟩, noting both as ranging from fricatives to approximants,[2] and later described realizations of ⟨ʢ⟩ ranging from a fricative, to a trill, to a fricative trill.[3] Esling furthered this reclassification with a modified version of the IPA chart, merging pharyngeal and epiglottal consonants into a single column, placing ⟨ʢ⟩ as a trill, ⟨ʕ⟩ as a fricative, and ⟨ʕ̞⟩ as an approximant.[1] A voiced epiglottal approximant ⟨ʢ̞⟩ is reported to occur in Dahalo, though the authors recognize that this is a precise description, and that the sound is still "pharyngeal in a broader sense",[4] so that it may be describing the same sound as ⟨ʕ̞⟩.
Few languages distinguish between pharyngeal and epiglottal fricatives. However, according to Peter Ladefoged, the Aghul spoken in the village of Burkikhan, Dagestan has both a voiceless pharyngeal fricative and a voiceless epiglottal fricative.[5]
Features
Features of a voiced epiglottal 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 epiglottal, which means it is articulated with the aryepiglottic folds against the epiglottis.
- Its phonation is voiced, which means the vocal cords vibrate during the articulation.
- It is an oral consonant, which means that air is not allowed to escape through the nose.
- It is a median consonant, which means it is produced by directing the airstream down the midline of the tongue, rather than to the sides.
- Its airstream mechanism is pulmonic, which means it is articulated by pushing air only with the intercostal muscles and abdominal muscles, as in most sounds.