The phonology of Loup A (Nipmuck), reconstructed by Gustafson 2000:
| Bilabial | Alveolar | Palatal/ Postalveolar |
Velar | Glottal | |||
|---|---|---|---|---|---|---|---|
| plain | pal. | plain | lab. | ||||
| Plosive | p | t | tʲ | k | (kʷ) | ||
| Nasal | m | n | |||||
| Affricate | tʃ | ||||||
| Fricative | s | h | |||||
| Lateral | l | ||||||
| Approximant | w | j | |||||
| Short | Long | Nasal | |
|---|---|---|---|
| Close | i | iː | |
| Mid | e | ||
| Open | a | aː | ã |
| Back-mid | o | oː | |
| Back-close | u |
The vowel sounds likely have the same phonetic quality as other southern New England Algonquian languages. The short vowels /i o e a/ may represent the sounds as /ɪ, /ʊ/, /ɛ,ə/, and /ʌ/, while the long vowels /iː/, /oː/, and /ã/ correspond to /i/, /o/, and /ã/.