Originally posted by: Pariah
Originally posted by: The Boston Dangler
http://www.soundblaster.com/eax/
Nowhere on this site, nor it's subdirectories, is the word "multichannel".
No, Creative substitutes the words 3D audio instead of multichannel. EAX is not stereo. Like Accord99 said, EAX does not produce audio channels, so it isn't really anything when viewed from that perspective. EAX is an extension of DirectSound3D, and now OpenAL. What it does is generate audio effects within a 3D space. The sound card drivers receive this information, and then determine which speakers receive which audio based on the speaker configuration you have. If you had 50 speakers and Creative made a soundcard capable of sending discrete audio to each, EAX could take advantage of that.
For a card that uses DDL, all it does is take the same EAX audio sound locations that a Creative card gets, and then compresses them into a DD compliant stream. With the exception, that current gen Creative cards use the much more advanced EAX HD 5.0 as opposed to the ancient EAX 2.0 that non-Creative cards support. DDL does not alter the audio or make it anymore "3D like." DDL is also limited to 5.1 channels, while most of the recent Creative cards support 6.1 or higher through analog. So, if you have system capable of taking advantage of it, Creative cards will also deliver more discrete surround channels than other cards. Anyone trying to claim that DDL cards produce more realistic gaming surround sound than Creative cards, is simply a snake oil salesman. A game running in DirectX 3 displayed on a digital flat panel will never look better than the game running in DirectX 9 on an analog unless something is seriously wrong with the setup, which would be the equivalent claim.