Gstaff PMed me before like a few weeks ago and asked me to mail him my sound settings and hardware list etc etc, about this specific low sound problem.
So my guess is that they've worked on it and they are very much aware of it.
It seems the majority of PC users have the problem, at least here on the forums:http://www.gamesas.com/topic/1308380-bethesda-fix-the-low-sound/page__p__19680615#entry19680615
So far, Loudness equalization has worked best for me, but it's tedious to turn it on/off all the time when playing Skyrim.
Hi, I've the problem and I'm waiting the fix to start my firts game and I can tell you that it's horrible, I'm waiting since 48 days + 3 years of wating !!!
Seriusly, I've a partial solution for realtek users with 2.1 sound.
In the realtek audio center, set sound to 5.1, enable just right, left and the bass and active audio enhencement.
That's quite good but the voice are too low because a big part of the voice sound is in the center speaker witch is disable.
Bethesda staff, pls fix that.