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Main sound category: Diphthongs
Source vowel: SoundCategory object (201)
Target vowel: SoundCategory object (189)
IPA symbol: äo
IPA description: open central unrounded vowel to close mid back rounded diphthong
UPSID symbol: ao
UPSID description: low central unrounded vowel to higher mid back rounded diphthong
Occurs in 1 language
That is in 0.20% of all languages
Occurs in: Bengali_Bangladesh