Phonology
Northern Khmer has the typical Mon-Khmer consonant and syllable structure although there is no phonemic phonation. The primary divergences from Central Khmer phonology are in the realizations of some syllable-final consonants and in the vowel inventory. Northern Khmer is also losing the sesquisyllabic pattern of its sister languages. Many dysllables have lost all but the first consonant of the pre-syllable, creating a great number of consonant clusters. In many dialects of Northern Khmer, however, inserting a generic syllable, /-rÉ”-/, after an initial consonant is still optional, returning some words to their original sesquisyllabic structure.
Read more about this topic: Northern Khmer Dialect