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A voiceless postalveolar fricative is a type of consonantal sound used in some spoken languages.The International Phonetic Association uses the term voiceless postalveolar fricative only for the sound [ ʃ ], [1] but it also describes the voiceless postalveolar non-sibilant fricative [ɹ̠̊˔], for which there are significant perceptual differences.
The voiceless palato-alveolar sibilant affricate or voiceless domed postalveolar sibilant affricate is a type of consonantal sound used in some spoken languages. The sound is transcribed in the International Phonetic Alphabet with t͡ʃ , t͜ʃ tʃ (formerly the ligature ʧ ), or, in broad transcription, c .
The closest sound found in English, as well as many other languages, is the voiceless postalveolar fricative [ʃ] (Swedish words with the sound often correspond to English words with "sh", such as "shield", "shoot"), although usually the closest audible approximation is the voiceless labialized velar approximant [ʍ] found in some English dialects.
Postalveolar, which means it is articulated with either the tip or the blade of the tongue behind the alveolar ridge, termed respectively apical and laminal. Its phonation is voiceless, which means it is produced without vibrations of the vocal cords. It is an oral consonant, which means air is allowed to escape through the mouth only.
voiced dental fricative: English this, Icelandic fræði 'science' s: s: voiceless alveolar fricative: English see, Spanish sí ('yes') z: z: voiced alveolar fricative: English zoo, German sein 'to be' S: ʃ: voiceless postalveolar fricative: English she, French chou 'cabbage' Z: ʒ: voiced postalveolar fricative: French jour 'day', English ...
Most other dialects use a voiced uvular fricative , a uvular trill or an alveolar trill . See Standard German phonology. Silesian: Upper Lusatian: Greek [12] μέρα méra [ˈmɛɹɐ] 'day' Allophone of /ɾ/ in rapid or casual speech and between vowels. See Modern Greek phonology. Icelandic: bróðir [ˈprou̯ð̠˕ir] 'brother' Usually apical.
Features of the voiced alveolar fricative trill: Its manner of articulation is fricative trill, which means it is a non-sibilant fricative and a trill pronounced simultaneously. Its place of articulation is laminal alveolar, which means it is articulated with the blade of the tongue at the alveolar ridge.
Nasal clicks are click consonants pronounced with nasal airflow.All click types (alveolar ǃ, dental ǀ, lateral ǁ, palatal ǂ, retroflex ‼, and labial ʘ) have nasal variants, and these are attested in four or five phonations: voiced, voiceless, aspirated, murmured (breathy voiced), and—in the analysis of Miller (2011)—glottalized.