simonlange,
I reread your post and I missed where you said the audio device isn't intializing, I'm sorry. jpsdr's problem is different than yours, although audio related. If you hadn't hijacked the thread, I would have been paying more attention. I'm also wondering why I'm bothering to help you when you're being so rude.
I have had the unable to initialize audio on my setup, and it's always been when I've started XBMC before I turned on my amp. It's a stupid question, but what order do you start up your amp and XBMC?
The reason everyone is repeating themselves is because they are trying to describe to you what should be there in Windows -- not to be rude or talk down to you. When the developers are telling you to check there, it should be a strong hint that the issue is in the Windows audio, not XBMC. If you were thinking logically, then you would have chased down the issue in Windows 7 or elsewhere.
There are no XBMC drivers, to be blunt.
WASAPI is the new audio system in windows, and the drivers for Windows 7 are built around it. If there is no WASAPI listed interface, then something is wrong with your audio drivers or your installation.
There are a couple of things I've noticed in your setup that you can try, if you are willing. But I need to ask some possibly dumb questions:
- What is the default audio playback device in your Windows Sound playback listing?
- How is your Revo connected to your amp? It sounds like you also have TOSLink connected as well as HDMI. If so, remove the TOSLink.
Another thing that I find strange is that XBMC is picking up your AMP as the HDMI device. Do you have HDMI Standby Through enabled on the amp? I have it enabled on mine, as well as HDMI control off, and I see my NVidia HDMI listed. I don't think it would help, but you can try turning those two options off.
In my setup (Revo R3610, Intel Atom with NVidia ION, Win7-64bit running XBMC v11 stable) I have only the HDMI connected to the amp from the PC and obviously then HDMI to the TV. I have HDMI as my default audio playback and it's configured for 5.1, and the properties on it have all the post processing effects off (advanced tab). I'm running the 296.10 nvidia drivers which include the 1.3.12 HDMI audio drivers, and the R256 Realtek audio drivers. XBMC is set for HDMI output at 5.1 using the NVidia HDMI WASAPI interface (I have WASAPI and directsound labeled devices for analog, nvdia, and even a primary audio device as options). I also have AC3 and DTS enabled. I have no problems playing ac3 or DTS material in multichannel.
Try to understand my point of view and think logical. If others, such as me, are telling you they have a similar setup and have no problems playing AC3 or DTS, then maybe it isn't a problem with XBMC?
If you want more help, post a
debug log to pastebin.com, and post which drivers for video (including hdmi) and audio you are running. I know you wrote you updated them, but if you are asking for help then you have to give a little.
Ciao.