Tanggu language

Tanggu (Tangu, Tanggum) is a Ramu language of Papua New Guinea.

Phonology

 * /m/ can occur syllabically [m̩] word-initially.
 * /ʁ/ is heard as [ɣ] before /i/.
 * /ⁿdʒ/ is pronounced [z~j] in the Wagi dialect.
 * /ɨ/ almost always occurs only in unstressed syllables and diphthongs.

Additionally, the following diphthongs have been observed: /ia/, /ɨa/, /ai/, /ui/, /au/, /ua/. /ai/ is realised as [æ] word-finally.