Have the voices of e.g. Cortana, Grunts been re-recorded or are the original audio files being used? 
> Have the voices of e.g. Cortana, Grunts been re-recorded or are the original audio files being used?
That was something I wanted to know, because in the Spanish dubbing, e.g. cpt. Keyes had a different voice than the CE’s Keyes. I suppose they will re-record audio voices
I know the whole audio have been remastered but I’m not sure about the voices :S
They’re using the original voice audio files.