If I know their appearance, the voice that comes from it is close enough.

[Perhaps not an exact proximation, but unless one is being particularly observant, he likely could get away with it.

Another shift in the air, and Ardyn returns to how he was. There's only so long he ever desires to pretend to be another Lucis Caelum, even if he's showing off.]

Do you wish to know for a reason outside of mere curiosity?