Vowel nasalization in the northeastern dialect and its effect on central Thai and English

Vowel nasalization, without being influenced by nasal consonants (VN), is distinctively pereeplible in a pronounciation of speakers originally from northeastern Thailand. And when these speakers engage in a conversation using Central Thailand or English, this language-specific phenomenon is undoubtedly, though with a lesser intensity, being carried over. The present study shows that Vowel Height Parameter (VHP) and Vowel Length Parameter (VLP) are two driving factors contributing to the speakers' nasalized vowels. Tongue height and tongue advancement are very crucial for vowels to be nasalized. The study also suggests that obstruent consonants partake in vowel nasalizatopn more than sonorant consonants. With and exposure to the sound system or phonetics of the new language, the study implies that degree of intensity of the speakers' nasalizeg vowel is weakened.