WinDVD6 - Center Speaker not working

[spitfire_ch]

Hi,

so far I used WinDVD 6 with an external AC3/DTS decoder, to which I sent audio data in digital S/PDIF mode - this works perfectly. Now, I've bought a true 5.1 headphone (Teac HP-11-R with real 5.1 channels, not just an emulation) so that I can also watch movies with a reasonable volume after my girlfriend has gone sleeping. It doesn't have digital in, so I use the setting "analog soundcard" (Creative Sound Blaster X-Fi Xtreme Audio Notebook) with the 5.1 option.

Nature of the problem
I don't get any voices from the center speaker. The voices can only be heard if I select "Listen on Headphones" instead of speakers. But then, it comes from front left and right, the center channel remains quiet. So this is not 5.1. If I use speakers, I don't hear the voices (only very very faint). I tried all kind of settings to no avail. I don't know about the rear channels, because those are more difficult to verify.

The headphone - soundcard combination works perfectly with VLC mediaplayer. There, the voices come from the center channel.

Properties of your source files
DVD, AC3

What devices are involved and their mode of connection?
- Creative Sound Blaster X-Fi Xtreme Audio Notebook with 5.1 docking module
- Teac HP-11-R 5.1 headphones

Your help is highly appreciated.

sincerely,

spitfire