Converting from Creative's SPDIF to Coaxial SPDIF:

About one to two years ago, I bought myself FPS 2000 Digital speakers. Connecting the speakers digitally to my SoundBlaster LIVE! was a breeze, as the FPS 2K's used Creative's SPDIF.

These days I am using my onboard soundcard (Soundstorm), which is supposed to sound phenomenal. Unfortunately, you can only tell using a digital connection to the speakers (bypassing the sup-par Realtek decoder). I'd love to do this, but because my speakers don’t use the standard SPDIF spec, I'm stuck with using analog. Not bad, but not what I paid for either.

So what I'm wondering is how I could convert the standard SPDIF signal to the "Creative spec" SPDIF. What I've learned about the Creative version is that the 4.1 SPDIF signal is actually two standard stereo SPDIF signals. These two stereo SPDIF signals are sent through two different leads, eventually hitting the decoder.

So what it comes down to is this: I have to split the standard 4.1 SPDIF signal into two separate stereo SPDIF signals.

The problem is: I have no idea how the channels are split within the SPDIF signal.

I'd like to think each channel is on a different frequency, but what frequency (and weather or not this is the case) I'm unsure of.

Does anyone have any ideas? Could someone point me in the right direction?