Features
Features of postalveolar clicks:
- The basic articulation may be voiced, nasal, aspirated, glottalized, etc.
- The forward place of articulation is alveolar or postalveolar, depending on the language, and apical, which means it is articulated with the tip of the tongue against the alveolar ridge or the roof of the mouth behind the alveolar ridge. (Damin contrasted these two articulations as separate phonemes.) The release is a sharp, plosive sound in southern Africa, but in Hadza and Sandawe they are frequently flapped, with the underside of the tip of the tongue striking the floor of the mouth after the release of the click; in some cases, the release is rather faint, and it is this sub-apical percussive sound that dominates.
- Clicks may be oral or nasal, which means that the airflow is either restricted to the mouth, or passes through the nose as well.
- They are central consonants, which means they are produced by releasing the airstream at the center of the tongue, rather than at the sides.
- The airstream mechanism is lingual ingressive (aka velaric ingressive), which means a pocket of air trapped between two closures is rarefied by a "sucking" action of the tongue, rather than being moved by the glottis or the lungs/diaphragm. The release of the forward closure produces the 'click' sound. Voiced and nasal clicks have a simultaneous pulmonic egressive airstream.
Read more about this topic: Alveolar Clicks
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