This is my 2nd go round with REW. I have a BFD and have downloaded filters to it previously. I even got to the point where I was playing with House Curves and was pretty happy with the results. But I recently put a riser into my HT room and want to revisit my settings as it doesn't sound as good as it used to.
But I can't for the life of me get anything to work. I used the exact same setup as before and had a variety of weird things happening. I decided to go back to basics and start from scratch with the soundcard cal. And that is where I am stuck.
When I put the loopback in and do the calibration measurement, I get the expected response.
But then, when I try to measure it to verify things are working, I get this - a flat line (good) but at 111 dB (bad):
Then I check the SPL meter and it shows ~48 dB with the loopback connection on and nothing else connected! The problem is the same when I try to measure anything - its like I have a floor of 50 dB in all my measurements and its driving me crazy. I thought maybe it was a ground loop putting a buzz into the line inputs, so I disconnnected all other cables. Still no joy.
I have also made sure that the recording monitor is muted and REW is the only program running.
I'm guessing my onboard soundcard must be shot. But it seems hard to believe since I haven't really changed anything.
Does anyone have any ideas? Brucek?