The Catalan phonology (or Valencian phonology) has a certain degree of dialectal variation. Although there are two standard varieties, one based on Central Eastern dialect and another one based on South-Western or Valencian, this article deals with features of all or most dialects, as well as regional pronunciation differences.
Catalan is characterized by final-obstruent devoicing, lenition, and voicing assimilation; a set of 7 to 8 phonemic vowels, vowel assimilations (including vowel harmony), many phonetic diphthongs, and vowel reduction, whose precise details differ between dialects.
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