...trouble with a capital T which rhymes with P which stands for "problems with my surround sound processor not receiving a Dolby Digital signal when I know that it should be."
I have a Turtle Beach Ear Force DSS and an Audio Advantage Micro II from the same company. The DSS (as you probably already know) is a stereo to surround sound processor which can utilize Dolby Digital or Pro Logic II X inputs to make either 7.1 Dolby Headphone surround sound in any headphones, or to make a PLIIX signal to make "an expanded stereo sound in the headset." The only problem? I can't get my computer or any device I plug into it to output a DD signal for my life, save for two circumstances:
1) When I watch a Blu-Ray movie with the internal BD Drive
2) When I go to the Sound Properties window in the control panel, right click on the optical output, go to the Properties window of the Optical Output, and test the Dolby Digital signal in the "Encoded Formats" section of the Supported Formats window.
I tried buying the Audio Advantage Micro II, because on the Product Page for the device, Turtle Beach claims that, " By installing an optional driver, the digital output can also send 5.1 channel Dolby® Digital or DTS surround sound as an encoded digital audio stream to your home theater system. " I have the Optical adapter installed, the drivers installed, I have an Optical cable running from the Micro II to the Ear Force DSS, and still I do not have a DD signal coming to the DSS. I know this because the DD indicator light on the DSS will not light up save for the two circumstances listed above, even when I'm using the Micro II.
I ordered an Astro Mixamp 5.8 yesterday to replace the DSS, because I've had the DSS since Christmas and I haven't once gotten the DD/Dolby Headphone technology to work in games or anywhere on my computer outside of the two circumstances listed far above. I'd rather cancel the order for the Mixamp and save myself $113 and find a cheaper alternative if that's possible, I don't know. I want the surround sound for my games first and foremost, and movies second.
I don't know much about this technology and how it works (obviously, otherwise I wouldn't be having this much trouble with it) so I really need some help here. Turtle Beach tech support has been of no help whatsoever and they are not even working right now, and even if they were I wouldn't get a response for about two to three days.