Redirect output from one soundard to the other. For example DolbyDigital Live stream from SB X-Fi to HDMI output on AMD Radeon graphic Card.

When you're playing games on a PC connected to HDTV via HDMI there is no sound from add-in sound card like Asus Xonar or Sound Blaster. It would be great to be able to redirect (or better pass-through) the stream from add-in sound card to the HDMI audio device.