I neither care or need for headsets for home use.
That's why I have my 5.1 speaker setup. Yes, I want a sound card that can smartly create a 5.1 sound environment for poorly sound coded games (99.5% of them), using an actual 5.1 physical setup not just for the stereo headsets. If there's any sound card in the market that can do that, I would be more than happy to update my X-Fi Titanium to a new one
It's garbage. Can they offer the same quality in
real time for any game and movie as
this , for example? If not...
Not sure I am understanding what you are saying. What I know is that games have a bad virtual surround for stereo, which is why good virtual surround from surround multichannel, like CMSS3D, SBX, Dolby this and that (not recommended at all), Razer Surround, Windows Sonic, etc are needed. For that you need the game to output discrete surround multichannel sound (5.1, 7.1, etc) which they can do (and you usually need the device driver to accept Windows being configured in multichannel while the device output is stereo hadphones or even speakers, as most games audio output can't be configured).
So, they can output proper 5.1 or 7.1 (or other probably) multichannel audio, but they can not downmix it properly in stereo creating a virtual surround for stereo headphones or speakers. It's like multichannel sound is the default (or both are bad).
So, how do you expect to "smartly create a 5.1 sound environment"? From what? Because virtual surround in stereo is precisely the problem. And there is not another path...
Then, the video you gave is an old binaural recording, can't remember where that was from and what method was used (and can't listen to it now). But if it's binaural alone, it has the BIG problem of being really bad with sounds that come from the front while most virtual surround engines are very good at it. If it was holophonics, the one invented by Argentine Hugo Zuccarelli , well, that's (probably, or is according by my listenings) another story.
And you say you have an X-Fi, it has CMSS3D. Have you even tested it? It doesn't have the sound quality, that's for sure, but technologies like it are still being developed (I assume they depend on an expected use of hardware and method of achieving the desired result), but it does have the hability to make a virtual surround, better than the binaural as it can also put sound in front. There are a lot of demos in youtube.
Here's one from the HeSuVi thing which simulates many systems.
This, using discrete cards, and loook at his channel, you have other similar tests there.
And then you mention "in real time" (!!). Again you have an X-Fi, look at that for yourself. They do it in real time or fast enough as to call it "real time"...