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Coarticulation in phonetics refers to two different phenomena: the assimilation of the place of articulation of one speech sound to that of an adjacent speech sound. For example, while the sound /n/ of English normally has an alveolar place of articulation, in the word tenth it is pronounced with a dental place of articulation because the following sound, /θ/, is dental.
More commonly, coarticulation involves secondary articulation of an approximantic nature. Then, both articulations can be similar such as labialized labial [mʷ] or palatalized velar [kʲ]. That is the case of English [w], which is a velar consonant with secondary labial articulation. Common coarticulations include these:
In phonetics, secondary articulation occurs when the articulation of a consonant is equivalent to the combined articulations of two or three simpler consonants, at least one of which is an approximant. The secondary articulation of such co-articulated consonants is the approximant-like articulation. It "colors" the primary articulation rather ...
The physiological or psychological mechanisms of coarticulation are unknown, and coarticulation is often loosely referred to as a segment being "triggered" by an assimilatory change in another segment. In assimilation, the phonological patterning of the language, discourse styles and accent are some of the factors contributing to changes observed.
The field of articulatory phonetics is a subfield of phonetics that studies articulation and ways that humans produce speech. Articulatory phoneticians explain how humans produce speech sounds via the interaction of different physiological structures.
Co-articulated consonants or complex consonants are consonants produced with two simultaneous places of articulation.They may be divided into two classes: doubly articulated consonants with two primary places of articulation of the same manner (both stop, or both nasal, etc.), and consonants with secondary articulation, that is, a second articulation not of the same manner.
Double articulation [2] refers to the twofold structure of the stream of speech, which can be primarily divided into meaningful signs (like words or morphemes), and then secondarily into distinctive elements (like sounds or phonemes). For example, the meaningful English word "cat" is composed of the sounds /k/, /æ/, and /t/, which are ...
For example, the English velar consonant /k/ is fronted before the vowel /iː/ (as in keep) compared to articulation of /k/ before other vowels (as in cool). This fronting is called palatalization . The relative position of a sound may be described as advanced ( fronted ), retracted ( backed ), raised , lowered , centralized , or mid-centralized .