| Main sound category: | Diphthongs |
| Source vowel: | SoundCategory object (186) |
| Target vowel: | SoundCategory object (172) |
| IPA symbol: | əu |
| IPA description: | mid central unrounded to close back rounded diphthong |
| UPSID symbol: | @u |
| UPSID description: | mid central unrounded to high back rounded diphthong |
| Occurs in | 6 languages |
| That is in | 1.22% of all languages |
| Occurs in: | Catalan (Central) Gelao Hmong Irish Kurdish NepaliOH |