Stearn-
"The pronunciation of Church Latin is based on modern Italian pronunciation, c before i and e accordingly pronounced as the English ch and not as s (the conventional English pronunciation) or k (the Reformed Academic pronunciation)."

Reformed Academic
a (macron) as in father
a circumflex as in apart
ae as ai in aisle
au as in house
c as in cat
ch (of greek words) as k or k-h (if possible)
e macron as in they
e circumflex as in pet
ei as in rein
g as in go
i macron as in machine
i circumflex as in pit (consonant i) as y in yellow
ng as in finger
o macron as in note (long vowel)
o circumflex as in not (short vowel)
oe as oi in toil
ph as p
r always trilled
s as in sit, gas
t as in table. native
u macron as in brute
u circumflex as in full
ui as oui (French), we
v (consonant u) as w
y macron as u in French pur
y circumflex as in French du