Just throwing this out there, as I haven't seen it mentioned elsewhere.
As I was playing Book 1, I noticed that in some locations the voices, especially for Zoë, appeared to have an excessive echo for the location. For instance, talking to the falling lady after grabbing her, Zoë sounds like she's in a Medium Hall, but from the surroundings I'd expect pretty much no echo at all (bridge open to both sides, irregular stone walls on the other sides).
The PC is new, so there could be settings I have missed, but at least I have not activated any effects processing...
I'm running off the default sound board on my MSI Z97 GAMING 3, Socket-1150, with an old 5.1 set from Creative. Windows 8.1.
Has anyone else heard this effect?