Originally Posted by ROBSCIX
Tell me, does it improve the sound by setting up room correction in Vista?
For me at least, it made a huge difference. With my poor room setup my front left speaker is almost 2' further away from me than my front right. It is also tucked into a corner where the right speaker is about 4' from the corner (door there). Before the correction vocals sounded like they were coming from the center speaker, very precise but the instruments were kind of lacking something in the background.
Now with the correction, it's like I 'stepped into the music' with it surrounding me. It was so dramatic that I seriously thought all speakers were being used, like somehow I had switched from stereo to surround. Of course I checked, and it was not the case. The vocals are not centered anymore, now it more sounds like I'm standing 15' back in a fairly large recording studio. Now if I could just get my vocals centered again, but still maintain the surround staging I'd be set. I have noticed though that my 'sweetspot' is much smaller than before, doesn't even cover the entire recliner left-right. Another thing I noticed is that my ouput levels from the xm seemed a bit lower and the sub level was much lower. In the end I set my 5800 to +3db to all speakers to counter the lower levels and put my sub at about +6db to bring back it's levels. I used the ratshack meter on specific tracks to make sure of my levels and it did show me the drop prior to boosing the amp levels.
I used a sennheizer cardoid mic, fairly decent setup, through a mackie soundboard, into the line in of the xm card. I must have done the correction at least 20x before I found a setting I preferred. Even using a mic stand, and zero noise in the room I saw huge differences in what the correction system was choosing to do. Delay's were anywhere from 16ms on one sweep to .4 on the next sweep for the exact same speaker. The correction system did keep the gain adjustments fairly close on every test though, it was just the delays that were all over the place. I know that the software is not powerful enough for multiple measurements like the 5805 does, so it seemed strange to have such a huge range. I ended up keeping the settings with fairly high delays as it sounded the 'fullest' to me.
On a side note:
the 'noise' I am getting from my speakers only happens when the receiver is set to the xm input. I can turn the amp up 100% and hear no noise on all other inputs, no source of course. I unwired the cables from the xm side, leaving the other ends in the preamp and the noise was gone, so it's definately the xm. Somehow I am picking up noise from the card/computer itself. Need to do some investigating on how to clean that up as for sure my 'blacklevel/floor' is no longer audiophile level using the xm. Don't take it as my saying it's bad, it only shows up with the receiver dial around -8 which is very high level, 0 being reference level. The computer does have 2 8800gtx cards firing down on my xm card so that could be part of it. I also have 750w ps, huge processor fan for ocing, and a ton of hard drives in there. I may try that shielded paper that I've heard talked about in this thread to see if that helps. Just need to re-read thread to find out what it is and where to purchase it. Open to any other ideas people may have.