yeah no problem! it does play a lot better with headphones on, but surround sound, yeah, the voices got drowned out ^^;
also, I would like to let you know a few things since I tried playing through (I did lower the master volume, but the music is still a little too loud in comparison to your VAs) :)
I think I somehow soft locked myself in the game.. I cannot open any door once I got the bedroom key and have no idea where to go ^^;
I might have broken the stairs, since the only way I can use them (after taking a few hits from the creatures while fumbling in near complete darkness) was backwards!
I cannot re-enter the room where the valve wheel was picked up (after I grabbed the bedroom key, not sure if intentional or not)
and occasionally, especially after taking a step or two in the basement, I lose my flashlight entirely. From the "red light" side as I've called it, the only way to get it back is by travelling up the ladder and moving through the total darkness until at some point in the long winding hallway (near the clean bathroom) do I get it back, and from the "bedroom?" side, I lose it after a step, but if I move backwards I get it back easily enough.
(and also there is no collision mapping with the fridge units that hold the bags of IV blood, but that was just a little thing I noticed xD)
just thought you should know :) Hope these notes help ^^