Diphthongs

MOUTH

[aʊ] occurs in CFE (before voiced segments), StHE, EAfrE, NigE, GhE, CamE, GhP, IndE and PakE. Nuclei with  or [ɑ] are reported in WSAfE, InSAfE and PhlE. The glide element [u], rather than [ʊ], is reported in LibSE (as a lesser alternative), Kamtok, SgE and MalE. [æʊ] is reported in WSAfE; [aʊ] in CFE (before voiceless segments); [ɔʊ] in BlSAfE; [Λ^u] in LibSE; and [ao] in NigP.

Monophthongal qualities also occur:  in WSAfE; [o] in BlSAfE; and [a] as a lesser alternative in GhE and GhP