Specifically the 1st century BCR
hi! fyi, there have been a few questions about this; check out earlier responses here
Is there any way to know what ancient Latin sounded like?
What do we know about pronunciation of the latin language?
Original pronunciation of "Ceasar"?
Classical Latin Pronunciation
Are there any accounts of the ancient Romans' accent(s) when they spoke Latin?
which form of Latin pronunciation was used in ancient Rome?
Did the pronunciation or grammar of the latin language vary in different part of the roman empire?
Why has the pronunciation of Latin terms changed so much over time?