kX Project is an alternate driver for Emu10k-based Soundcards (such as various members of the Audigy and X-Fi series and some Emu cards). The Emu10k2 is a surp

kX Project is an alternate driver for Emu10k-based Soundcards (such as various members of the Audigy and X-Fi series and some Emu cards). The Emu10k2 is a surprisingly overweight audio DSP that was being included for... unfortunately, no good reason, as Creative Labs sold these to gamers, and games just didn't use it outside of what could be exported via DirectSound (pre-Windows 10 sound mixing, EAX extensions (which they, themselves, are often a source of constant game crashes and/or BSoDs)) or the non-adopted Creative variant of OpenAL. This is what you ended up discovering. I, too, had one, but never really found a use for it, as the audio quality was pretty poor due to being just a generic DAC and a generic opamp on a generic PCI card. Better than onboard sound, but not as good as inexpensive external solutions.