EAX Advanced HD works fine for this demo. The problem was that I forgot to change the audio mixer from Audio Creation Mode to Game Mode. I have EAX effects disabled in Audio Creation mode.
|One question for you, do you notice much difference between eax 2 and 4?
The difference between the two definitely depends on the game that you're playing.
In the original FEAR, the only major difference I could tell is that occlusion effects were implemented in the developer's use of EAX Advanced HD and not with EAX 2. So an explosion or gunfire in one room, for instance, would get muffled if you run behind a wall or enter another room. The sound effects get occluded. EAX 2 apparently introduced audio occlusion, but I haven't heard it used in games using EAX 2. FEAR was a disappointment to me with regards to actual reverb effects, in that the game's limited number of different environments hardly ever allowed for a reasonable use of different effects, and the game used little variation in environmental effects in instances where there could have been much greater variation.
Games like Ghost Recon Advanced Warfighter, Doom 3 and Quake 4 are different stories though. With EAX 2 in general, you can only hear the same environmental effects at once, and there is no fluid transition for these effects.
In the case of Ghost Recon Advanced Warfighter, an example is running from an open space to a narrow alleyway while a squadmate is shouting to you. When entering the narrow alleyway, your squadmate's voice gets a distinctly different echo added to it. Likewise, in Quake 4, running from an outside open space to an interior while constantly firing a weapon results in vastly different reverb effects that change on-the-fly. The effects change exactly at the moment you enter the new environment.
An example difference that is accentuated by Quake 4's environments is the overall positioning of effects. For instance, the sound of enemy fire coming from the rear-right room will sound different from enemy fire coming from the front-left corridor, and the difference in effects can be heard at the same time.
These are just practical examples of the effects added with EAX 3, 4 and 5.