The voiceless palato-alveolar affricate or domed postalveolar affricate is a type of consonantal sound used in some spokenlanguages. It is familiar to English speakers as the "ch" sound in "chip".
Features of the voiceless domed postalveolar affricate:
Its manner of articulation is sibilantaffricate, which means it is produced by first stopping the airflow entirely, then directing it through a groove in the tongue and over the sharp edge of the teeth, causing high-frequency turbulence.
The International Phonetic Alphabet uses two symbols together to represent this sound: tʃ. They may be joined with a tiebar (t͡ʃ), and the t may sometimes be given the "retracted" diacritic (t̠ʃ). Formerly a ligature (ʧ) was used. Other phonetic transcriptions used include:
Barbosa, Plínio A. & Eleonora C. Albano (2004), "Brazilian Portuguese", Journal of the International Phonetic Association34 (2): 227-232
Blevin, Juliette (1994), "The Bimoraic Foot in Rotuman Phonology and Morphology", Oceanic Linguistics33(2): 491-516
Martínez-Celdrán, Eugenio; Ana Ma. Fernández-Planas & Josefina Carrera-Sabaté (2003), "Castilian Spanish", Journal of the International Phonetic Association33 (2): 255-259
Rogers, Derek & Luciana d'Arcangeli (2004), "Italian", Journal of the International Phonetic Association34 (1): 117-121
Shosted, Ryan K. & Chikovani Vakhtang (2006), "Standard Georgian", Journal of the International Phonetic Association36 (2): 255-264
Watson, Janet (2002), written at New York, The Phonology and Morphology of Arabic, Oxford University Press
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Where symbols appear in pairs, the one to the right represents a voiced consonant. Shaded areas denote pulmonic articulations judged impossible.