I know that this answer comes very late, but better late than never ... Actually, you do not have to look far to know how the imperial accent sounds. It's basically British English. You can also hear it in the Imperial stations (especially in the space traffic controllers announcements), but the voices can also have some not quite correct versions appear (as the example with the Asian-sounding woman in the station announcements) -It could also be around act a kind of sub-accent of the actual accent (or it is the imperial accent of an non-native engkish speaker.) Within the game there are many indications that in the universe several languages are spoken, only English -like nowadays-is considered a kind of lingua franca , just maybe a little different and seemingly much more widespread.) If you were a little curious about what options the ship has to offer, you may even already know the answer. If you click in the ship on the button "Codex" then on "knowledge base" and then clicking on "individuals", you can read a text depending on the person .You can also listen to the text thanks to the recordings with their original appropriate voices. When Aisling, Arissa and so on are speaking You hear clearly a very beautiful British pronunciation, the Empress with her pronunciation and emphasis sounds quite snobbish and snazzy. Meanwhile the beautiful original audio recordings have been replaced by the respective "newscaster voice" for every language, but I'm sure that you can hear the original voices, if you put the game in English. I hope I could help with the long post ^^'