Anyway, go into 'Audio Creation Mode':
* Click on the 'Settings' button at the bottom left of the Audio Creation Mode GUI.
A new box will pop up with three tabs: 'Clock', 'Bit-Matched' and 'Encoder'
* In the 'Clock' tab, set the Master Sampling Rate to '44.1 kHz'.
Make sure from time to time, that it's set to 44.1 kHz because due to a bug in the Creative native X-fi (i.e. not including Prelude) software, it may revert to 48 kHz.
* In the 'Bit-Matched' tab, tick the 'Enable Bit-Matched Playback' box.
What is 'bit-matched' playback?
Bit-matched playback is a mode when the drivers will strictly playback what the music file and the music software such as Winamp or Foobar2000, instructs it to do and bypass any equaliser set and Windows sound settings and sound processing. This disables the horrid SVM, the X-fi Crystaliser and increases the playback volume (playback volume != master volume) to maximum.
Because of the chipset used in the X-fi cards, you cannot achieve, from an audio purist's view, true bit-perfect playback but it's the closest you can get to it with the X-fi chipsets.
* In the 'Encoder' tab, just double-check that the 'output selection' is that of your X-fi card and if it isn't, change to it from the dropdown menu.
That simple in Vista because the Vista sound processing = much better than XP thus no need for other steps (e.g. Kernel Streaming) like in XP
It's the essential snippet from my guide you need.
Guide needs to be revised but I don't have an X-Fi card atm to take screenies lols.
This is for the music.
Music will sound far better than in Entertainment Mode.