Originally Posted by
Ge0
#1) Remove all center information using L-R processing or whatever the latest terminology is today.
#2) Band limit the audio so high frequencies are cut out. Hmm. I don't remember, maybe 2KHz
#3) Delay the rear channels to mimic reflections off the back of a listening room. Start with 20mS and go +/- from there.
The net affect is widening and deepening your sound stage. One you have it dialed in it makes a night and day difference. You need to try it to really understand the psycho-acoustical effect. I've been using this in home and auto for close to 15 years. I stand by it's effectiveness.
Oh, and you don't need to spend a lot of money for rear fill. It is only there to add subtle ambiance. Hell, you could use stock speakers. You just need some processing and a weak amp channel.
Ge0