Still have nothing to add, anthony?

...except some stupid religious quote? That explains a lot!

I was under the impression that DTS has less compression than DD.
THX has nothing to do with compression.
Feel free to correct me if I'm wrong.

THX is basically a set of guidlines so movies don't sound so bright in ones home. They also have a set of guideline for theaters to follow as well, among a few other things like the THX crossover.

DD compresses their signal to about 400kbps.
DTS compresses their signal to about 1.5 Mbps.

DD claims there compression format is more effecient than DTS therefore the bps is not so relavant.

Arguments can be made for both sides, I think DTS does sound a bit better in most of theater I have worked on.

I was not aware of that DTS was bumbed up 4db, interesting...

THX is NOTHING more then a stamp of approval to maintaion certain standards... and has absolutly nothing to do any kind of commpression or any "format"....

I beleive this was covered in the 2 previuos posts, or did we not make that clear?

In a surround processor or receiver, THX is circuitry built into the device. This circuitry has four steps it takes in addition to the steps a normal surround receiver takes. Before entering the THX circuitry the input goes through the 5.1 channel decoder and enters the circuit as your L, C, R, SR, SL, and sub signals.

First is bass management. All speakers will be crossed over at 80 Hz and everything below goes to the sub.

Second is the re-equalization of the front three channels. This is done due to home theaters sounding brighter than a commercial theater due to the size difference, and the proximity to the speakers.

Third is timbre match of the surround speakers, which helps to even out the sound pans front to back and left to right.

The last step is decorrelation. This helps a home theater room sound much more spacious.

After the THX circuit, the signals go through the time synchronization circuit (i.e.- the distance setting when setting up your receiver).

In the case of speakers and some other electronics you are correct, THX is a badge, but receivers and processors must have added components to get approval.

" THX is a badge, but receivers and processors must have added components to get approval."

And it's still not a compression format.

automan, has that not already been established?

I wish I could say that I actually feel I am experiencing good audio at Movie theatres but I can't and don't even bother to try and get towards the mid point of the theatre any more.

-DonB2