Occlusive

Consonant sound

In phonetics, an occlusive, sometimes known as a stop, is a consonant sound produced by occluding airflow in the vocal tract, but not necessarily in the nasal tract. The duration of the block is the occlusion of the consonant. An occlusive may refer to one or more of the following, depending on the author:Stops, or more precisely, oral stops—also known as plosives—are oral occlusives, where the occlusion of the vocal tract stops all airflow—oral and nasal.Examples in English are (voiced), , and (voiceless), ,.Nasals, also known as nasal stops, are nasal occlusives, where occlusion of the vocal tract shifts the airflow to the nasal tract.Examples in English are, , and.Affricates such as English, are partial occlusives. Typically stops and affricates are contrasted, but affricates are also described as stops with fricative release, contrasting with simple stops. Implosives, in which the airstream differs from typical stops and affricates. Ejectives, with yet another airstream. Click consonants, such as the exclamation tsk! tsk! made when expressing reproach or pity, are double occlusives with yet a fourth airstream mechanism. They may be oral occlusives, nasals, affricates, or ejective.

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