I was reading this blurb on a website about how they used the original 2-track tape of Pink Floyd's "Dark Side Of The Moon" in order to release the new fangled surround mix. I haven't heard the 5.1 DSOTM but I do have a tiny handful of multi-channel re-released albums from recordings which obviously began life as 2-channel mixes.
I know generally about the taking the in-phase center whosits to get the center channel and then some other phase malarkey to get the rears trick. (the Dolby thingy, right?) But what I'm hearing on these mixes sounds like discreet instruments panned around the five speakers. How the heck is that possible with a 2-track source? I can't fathom how you can have guitars in front and a synthesizer sweeping around the rears unless they were using the separately tracks from the original recording. Are my ear deceiving me? Is there a special trick to this? Some of this stuff seems like it would be impossible once the instruments were bussed together.
Any clues would be most appreciated. Thanks!
