|This language has
|Its Frequency index is
||0.325166297 (average percentage of segments; 0.1: many very rare segments; 0.39: average; 0.7: many common segments)
|The language has these sounds:
||Yessan-Mayo is spoken upriver from Ambunti, East Sepik Province, Papua New Guinea. Stress is initial except when /a/ occurs in a subsequent syllable and attracts stress to that syllable. Vowel allophones are very variable. Rounded allophones of central vowels occur before and after /w/ and after labialized velars. Fronted allophones occur contiguous to /i/ and, often, with bilabials.
||Foreman, Velma and Helen Marten. 1973. Yessan-Mayo phonemes. In Phonologies of Three Papua New Guinea Languages (Workpapers in Papua New Guinea Languages 2). Summer Institute of Linguistics, Ukarumpa.