Notes: There are no silent vowels in Latin, so every vowel is pronounced. In classical style, the "v" is like our "w" (as in: west), although pronouncing it like "v" is also fine. Other notes about classical style: the "g" is always hard (as in: go) and so is "c" (as in: cat), and "qu" is just like our "qu" (as in: queen). The diphthong "au" (in the words auctoritate and gaudeamus) is pronounced like our "ow" (as in: now).
At the bottom, I've also added a second version with the English translation so that it will not seem like mumbo-jumbo! Note that the word order is different in that version because English word order is very constrained compared to Latin.
You can listen to all four parts together at Soundcloud using this link.
Grátias ágo tíbi,
hanc ámplam dignitátem académicam
a decáno designátos
in ómnes potestátes
== WORD ORDER CHANGED ==
Grátias ágo tíbi, = I thank you,
(Decáne Williams) = Dean Williams
Grátulor = I congratulate
ómnibus = all (of you)
qui = who
consecúti sunt = have obtained
hanc ámplam dignitátem académicam. = this great academic rank.
Auctoritáte = By the authority
deláta míhi = given to me,
cónfero = I confer
in vos = on you
grádus doctórum = the doctoral degrees
a decáno designátos = assigned by the dean,
et admítto vos = and I welcome you
in ómnes potestátes = to all the rights
officiáque eórum. = and responsibilities of those (degrees).
Gaudeámus ígitur! = So let us rejoice!