I'm quite taken with what the JRiver Effect Surround Field does for my stereo setup. But I'd like to know why.
Is there an explanation of this effect somewhere? I did a search and all I found that it is loosely based on Blumlein Shuffling
as this statement was posted in a thread on here somewhere.
Is it as simple as a mid/side processor that's boosting the side level before reverting back to stereo or is there more to this effect?
The setup I use are large full range line arrays I've build myself and they are being processed within JRiver with use of Convolution
with DRC-fir. The Surround Field gives me the impression of more depth compared to the convolved stereo signal by itself.
But I'd like to know/learn why. I've spend quite some time setting up the speakers and still, this effect has great influence
on the perceived sound. So that makes me really curious.
I have played with the free Voxengo MSED vst and it seems boosting the side level in it's mid/side processing has a very similar result.
Here's a picture of my setup:
With a distortion measurement at the listening position (left + right speaker playing)
More info on the line arrays here:
http://www.diyaudio.com/forums/full-range/242171-making-two-towers-25-driver-full-range-line-array.html