Coarticulated sounds

[cormacanderson]

A number of coarticulated sounds are not being parsed.

• [ ] ŋm voiced velar-and-labial nasal consonant
• [ ] ŋmkp > ⁿkp pre-nasalized voiceless velar-and-bilabial stop consonant
• [ ] ŋmgb > ⁿgb pre-nasalized voiced velar-and-bilabial stop consonant

From LAPSyD:

• [ ] nm voiced alveolar-and-bilabial nasal consonant
• [ ] n̠m retracted voiced alveolar-and-bilabial nasal consonant
• [ ] nmtp > ⁿtp pre-nasalized voiceless alveolar-and-bilabial stop consonant
• [ ] n̠mt̠p > ⁿtp, pre-nasalized retracted voiceless alveolar-and-bilabial stop consonant

Three rare sounds but legitimate sounds should also be added.

• [ ] xʀ̥ voiceless velar-and-uvular fricative consonant
• [ ] t̪ʙ with-trill-release voiceless dental-and-bilabial stop consonant
• [ ] βɾ voiced bilabial-and-alveolar fricative consonant