Both, before I was on medication I had a lot more external voices. They sounded like several people standing just behind me and they talked like those obnoxious people who talk in the movie theater. I used to have them on and off throughout the day and even at night; at worst there was one week before I was hospitalized the first time when they talked almost nonstop. Now on meds I have external voices a couple times a day and have more internal voices that come and go throughout the day.
I've had mostly second-person voices, some third-person voices, and almost never audible thoughts (first-person voices). I had some command voices as well. On occasion my internal voices felt like they were coming from inanimate objects.