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Main sound category: Diphthongs
Source vowel: SoundCategory object (196)
Target vowel: SoundCategory object (173)
IPA symbol: ɔɪ
IPA description: lower mid back rounded to near close front unrounded diphthong
UPSID symbol: calst_OI
UPSID description: calst_OI
Occurs in 2 languages
That is in 0.41% of all languages
Occurs in: English English_American