Affrication may be encountered in initial, intervocalic, and final position.
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There is similar velar affrication with the dental ejective click among some speakers.
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For the Borowiacki dialects and the Pomeranian language, the common feature was affrication of dorsal consonants.
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This affrication, however, is not obligatory.
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Also, in broad Cockney at least, the degree of aspiration is typically greater than in RP, and may often also involve some degree of affrication.
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More examples
The conversion of a simple stop consonant into an affricate
(affricative) affricate: a composite speech sound consisting of a stop and a fricative articulated at the same point (as `ch' in `chair' and `j' in `joy')
Affricates are consonants that begin as stops (most often an alveolar, such as or) but release as a fricative (such as or or occasionally into a fricative trill) rather than directly into the following vowel.
Becoming an affricate sound; a particular instance of such change
(affricative) An affricate; Of, or relating to an affricate
An affricative is a phone which can be thought of as a very rapid, blended sequence of a stop and a fricative. The stop and fricative must be produced in a very similar positions in the mouth. ...