ZEKE SAYER said:
Look jake, I'm not saying that your wrong, but even if it is just a home system, It Does do surround sound, maybe not the best, but it works. What's the diffurence in the home and pro set ups? (beside prices)
"surround sound" is often confusing, but let me make an attempt to explain it, as there are different aspects to it.
First, "surround capability" simply means you have 6 speakers, or eight speakers, and a console that has at least that many busses.
Six speakers being:
Left front, left rear, right front, right rear, center and sub (lf).
Eight speakers being:
Left front, left middle, left rear, right front, right rear, center and sub (lf), or similar.
Having all the monitors, amps, and mixing busses essentually gives you the ability to record, and monitor, surround sound. But this is only part of it.
Mixing surround sound is significantly more complex than stereo, because eventually the surround sound (6 or 8 channels worth) gets encoded down to a digital data stream which ultimately ends up compressed - so the frequency response of the "alternate" channels may be limited.
That being said, an inexperienced engineer might have stereo left/right perfect, but with the surround audio data encoded, might have phasing issues mixed in that ultimately sound like schite. To do surround properly, you need an elaborate and expensive monitoring systemed, carefully tuned to the mixing space, with crossovers, room structure and surface adjustments, etc. This is not something you can do well with three Event 20/20's and a radio shack sub with five behringer crossovers, period, end of discussion.
To do this properly, you're in the price range of Genelec's for example, and if you hunt around at pricing you'll see your in the $20K and up range just for the monitoring system, not including tuning, mounting, soffiting, room tuning.
Now that you have purchased all this "stuff", and are successfully mixing 5.1 or 7.1 to an 8 track recorder for mastering, how do you get it to a digital encoded stereo format?
Well, you can record the eight tracks (or six) into a RME card into your favorite software, and use software encoding, ending up with a wave file to burn to CD. Thats probably the least expensive way to do it, however I've heard some of the lower cost solutions and I can pick them out as compared to a more professional solution, which requires the six or eight channels being "sent" to a rackmount encoder.
THX licenses technology for encoders, as does Dolby and DTS. Which encoding scheme do you want to use? That depends on your customer, or end result. For playback in the consumer market, Dolby is strong and DTS is very strong, probably the best choice. For video production work THX needs to be seriously considered, as many, many movie theaters are utilizing THX.
Once you encode it, you have a finished product. How do you listen to it? Well, a decoder of course
Do you own a home theater system that can properly decode THX, Dolby and DTS? Probably not. Probably Dolby or DTS. Fine if you're not doing theater work.
Because I did some "pro" work, I have the following devices in my studio, and I can assure you they weren't free, or even nearly free.
DTS: CAE-4 encoder, CED-4 decoder
http://www.psintl.com.hk/dts/cae4-specs.html
Dolby: DP569 encoder, DP562 decoder
http://www.psintl.com.hk/dolby/dolby.html
The dolby units do AC-3 for DVD work as well as Dolby E and a few other things which is nice. Dolby has so many formats its tough to find one magic box that does "enough" of it.