Hey Matt,
I'm trying to use digital coax out from my MSI motherboard, and I can't.
Like you I can get the Dolby Digital test sound to work from the sound
control panel. I've attached below a thread from the
"microsoft.public.windows.vista.hardware_devic es" newsgroup for info. You
might want to keep an eye on that for an answer too.
Graeme
"Matt G" <> wrote in message
news:0FF5BEAA-2726-451F-A8C4-...
>I bought a new PC with Vista, and I'm interested in gaming on my HDTV. I
>have
> an Asus P5B Motherboard with integrated audio. I'm able to output in 5.1
> with
> DirectSound 3D when I use the 3 speaker plugs on the back, but it doesn't
> output over the fiberoptic cable with Dolby Digital... It will for the
> Windows test, but not with DirectSound 3D. Can anyone do that? What sound
> hardware do you have? Does anyone know if it's a driver thing or do I have
> to
> start looking for PC games that explicitly support Dolby Digital 5.1
> encoding?
>
> Thanks!
----- Original Message -----
From: "Grae" <>
Newsgroups: microsoft.public.windows.vista.hardware_devices
Sent: Sunday, May 13, 2007 12:47 PM
Subject: Re: new update AC'97 audio Vista driver 2007/5/10
> Thanks, I'm using the setup to play DVDs and HD-DVDs with Dolby Digital or
> DTS via Cyberlink Powerdvd or Nero Showtime, and can put the sound thru
> Boston (digital) desktop speakers or A/V receiver. The Realtek onboard
> (ALC850) sound works fine if I boot my old XP MCE, but is totally screwed
> if
> I boot Vista64 ultimate. Using 6 analog cables isn't an option for me, as
> those inputs on the AVR are already taken for sacd.
>
> I tried contacting Realtek Support and got a response of:
>
> The Audio driver doesn't support "Dolby Digital" function for your
> motherboard .
> Because this is required by your motherboard manufacturer .
> This function was supported by Dolby licence .
> You can try to play sound with PowerDVD or WinDVD ( support Dolby
> digital ) .
>
> This response you'll appreciate was quite helpful (not). Cruzing the
> bulletin boards etc, I get the idea the problem is pretty much common to
> most sound drivers including Realtek and Creative. I'm keen to hear of
> any
> cards that work. It seems Microsoft possibly made a late change for
> improved content protection on Vista64, caught everyone out, and no-one
> wants to talk about it yet.
>
> Graeme
>
>
>
> "George" <> wrote in message
> news: ups.com...
>> Did you ever use XP and did the surround sound work? Do you get
>> surround sound playing Dolby Digital DVD movies?
>>
>> I assume you are connecting your computer to a AV receiver with the
>> spdif / digital coax output. I have a computer connected to my AV
>> receiver using spdif / digital optical output. I get surround sound
>> with DVDs encoded with Dolby Digital or DTS. I do NOT get surround
>> sound with PC games. This is a limitation of the sound card. In
>> order to get surround sound from games via a spdif output, the sound
>> card would have to encode the sound to Dolby Digital or a simular
>> format a reciever can handle. What I did was to connect my PC's
>> analog sound output to my reciever's mutichannel analog input. I use
>> the analog connection for sorround sound games and the spdif for
>> everything else. Alternatively, there are sound cards that will
>> encoded PC surround sound into Dolby Digital. However they may not
>> work with Vista yet.
>>
>> On May 11, 8:20 pm, "Grae" <grae...@yahoo.com> wrote:
>>> Thanks, I installed it on Vista64 Ultimate, but it still does nothing
>>> for
>>> surround sound output via spdif / digital coax jacks. Best I can get is
>>> PCM
>>> stereo sound only.
>>>
>>> Graeme
>>>
>>> "GT" <G...@discussions.microsoft.com> wrote in message
>>>
>>> news:A4CEC69E-8BBC-48A6-8C6E-...
>>>
>>>
>>>
>>> > Just notice that Realtek release a new update for AC'97 audio Vista
>>> > Driver.
>>> > Just want let anyone know about it. anyone know if this is digitally
>>> > sign?- Hide quoted text -
>>>
>>> - Show quoted text -
>>
>
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