Phonology is not a static in wich an
establish unit unchanged in all its accurrence. There is a universal principle
that applies to all sound systems, namely, that sound units tend to be
influnced by their environment. “Environment” as used here refers specifically
to the influence of neighboring units, the position in wich a sound accurs in
larger units such as a syllable, morpheme, or word, and the accurence of
certain suprasegmental units such as stress an intonation.
Ultimately, the modification of sounds
seems to follow natural principle retad to physiological and physiological
strategies. Phonological processes apply to alter phonemic forms of words in
various ways.
In the above example, the sound as stored
may sometimes differ from the sound as spoken. Some processes make sequences of
sounds easien to pronounce. Processes can also make individual sounds easier to
perceive. Some processes adjust the timing of sounds to maintain a steady
rhythm in speech.
There are several kinds of phonological
processes wich fulfill the function described above. One the most common kindof
processesfound in language is assimilation, in wich a sound takes on the
charateristics of a neighboring sound. There are two necessary components that
define assimilation first, a sound that changes (the assimilating sounds) and
second that causes the change (the conditioningsound progressive assimilation,
the assimilated sound follow the conditioning sound. Regressive assimilation,
the assimilated segment precedes the conditioning item.
When an assimilation process results in
contiguous identical conconants, it is called gemination. In the phonological
process of deletion units wich accor in some contexts are lost in others. A
phonological process where a sound segment is added of inserted to a form is
called insertion or commonly termed in phonology as epenthesis. When two
segments reverse positions the processin known as metathesis pronoucing ask as
ask represents the remnants of this process.
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