Channel 9 Forums - Coffeehouse - SPDIF in Vista http://mschnlnine.vo.llnwd.net/d1/Dev/App_Themes/C9/images/feedimage.png Channel 9 Forums - Coffeehouse - SPDIF in Vista http://channel9.msdn.com/Forums Channel 9 keeps you up to date with the latest news and behind the scenes info from Microsoft that developers love to keep up with. From LINQ to SilverLight – Watch videos and hear about all the cool technologies coming and the people behind them. http://channel9.msdn.com/Forums en Thu, 23 May 2013 05:09:39 GMT Thu, 23 May 2013 05:09:39 GMT Rev9 26 -26 -1 Coffeehouse - SPDIF in Vista I'm hoping Larry Osterman or someone else closely involved with audio in Vista can chime in here... but SPDIF in Vista still confuses me to no end.

If you don't know what SPDIF is, see here. In my case, I use to get an AC3 or DTS signal to an external decoder, providing better sound than letting the software or soundcard do the decoding and using an analog speaker connection.

In XP, this is really simple. There is only one "entry" for each audio device (I have two, an onboard Realtek AC'97 and a Creative Sound Blaster X-Fi), and it takes care of everything: analog sound, PCM digital out, and SPDIF passthrough digital out. In an app such as PowerDVD, I simply select "SPDIF" as the output option and it uses my external decoder no problem.

On Vista, I get two audio devices (or "end-points" I suppose). One is called "Speakers", the other is "Spdif-output" (for the X-Fi) or "Digital output" (for the Realtek). The Speakers one is the default audio device by default.

When I open the properties of the "Spdif-output" device, I can select the supported formats and sample rates, and this works fine. If I choose to test Dolby Digital, I hear sound and my decoder says its receiving a Dolby Digital signal. Note that the "Digital output" device for the realtek has the configuration option grayed out, has barely any properties, and cannot be tested. I can't make the PC make any sound at all with that device.

So far, regardless of whether I set "Speakers" or the specific "SPDIF" option as the default, no app can successfully use SPDIF. Applications like PowerDVD and Media Player Classic simply produce no sound at all when SPDIF is selected. In Windows Media Player I can't explicitly choose to use SPDIF, but if the "Spdif-output" device is the default WMP produces no sound with DVDs.

Windows Media Center comes closest. It can be set up to use digital output in the setup screen (which changes the system default audio device to "Spdif-output") and it does indeed give sound, using the external decoder. So that sounds good, right? Unfortunately, after about a minute of playback, the sound either gets very choppy or goes away completely (with the decoder showing "No digital data").

So what's the deal here? Am I supposed to set "Spdif-output" as the default if I want to use SPDIF? Why can't WMP use SPDIF? What're third-party apps such as PowerDVD supposed to do to use SPDIF since obviously the old way with a DirectSound stream doesn't work anymore?

If only this would work, then I could watch DVDs in Vista and I wouldn't need XP at all anymore. Having to reboot everytime I want to watch a DVD is driving me nuts. Sad

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/228771#228771 Mon, 11 Sep 2006 21:21:53 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/228771#228771 Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista What driver versions are you using for the Realtek and the X-Fi?

Are these 32-bit or 64-bit machines?

This is the RC1 build, I assume?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/6a8fe62762354f23b3da9dea010a6faf#6a8fe62762354f23b3da9dea010a6faf Mon, 11 Sep 2006 21:46:49 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/6a8fe62762354f23b3da9dea010a6faf#6a8fe62762354f23b3da9dea010a6faf Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:
What driver versions are you using for the Realtek and the X-Fi?

Are these 32-bit or 64-bit machines?

This is the RC1 build, I assume?

Sorry, I should have mentioned. Yes, it is RC1, and it's x64 (although the same thing happened on 5536 x86).

I'm using the latest Vista beta drivers for both the Realtek and the X-Fi. I just discovered I actually wasn't using the latest drivers for the Realtek, so I installed those, and now Realtek's "Digital output" endput has the same type of options as the X-Fi's "Spdif-output" (although it supports considerably less sample rates).

Using this now functional Realtek option, Media Center performs much better; there's still the occasional glitch but it doesn't lapse into silence or continuous glitches anymore. So it seems that part at least is to blame on the X-Fi driver.

WMP, PowerDVD and Media Player Classic show no change. No sound whatsoever when using SPDIF out. It's also interesting to note that they all have regular playback stutters (about every 5 seconds or so) when configured to use SPDIF, which don't occur using normal analog sound.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/ab0d95dbc8344f1daeef9dea010a6fdb#ab0d95dbc8344f1daeef9dea010a6fdb Mon, 11 Sep 2006 22:18:31 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/ab0d95dbc8344f1daeef9dea010a6fdb#ab0d95dbc8344f1daeef9dea010a6fdb Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista The "no sound" could be a protected media path failure; I assume the DVD you're trying to play is copyrighted.  If there's an unsigned driver that handles the audio, digital outputs will be disabled for protected media.

Could you try playing some non-protected .wav file in WMP?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/4763da53164e41ca886c9dea010a7003#4763da53164e41ca886c9dea010a7003 Mon, 11 Sep 2006 22:38:23 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/4763da53164e41ca886c9dea010a7003#4763da53164e41ca886c9dea010a7003 Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:
Could you try playing some non-protected .wav file in WMP?

Anything that doesn't require actual passthrough (but would use PCM output), such as MP3 or WMA works fine in WMP even with the SPDIF device selected. Only DVD has a problem. The Creative driver is not signed, but the Realtek driver is, but as I said the problem occurs on both.

Plus, if it was that, why would Media Center be able to do it but not WMP?

One thing that does have to do with copyright protection is that both WMP and Media Center refuse to let me use my main DVD drive (which is RPC-1, i.e. region-free) so I have to use my DVD writer (which is RPC-2). But in this case, both tell me that there is a problem with copyright protection preventing playback.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/0e1b65f14ad04bf8a7329dea010a702e#0e1b65f14ad04bf8a7329dea010a702e Mon, 11 Sep 2006 22:51:08 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/0e1b65f14ad04bf8a7329dea010a702e#0e1b65f14ad04bf8a7329dea010a702e Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista
Sven Groot wrote:
One thing that does have to do with copyright protection is that both WMP and Media Center refuse to let me use my main DVD drive (which is RPC-1, i.e. region-free) so I have to use my DVD writer (which is RPC-2).


...!?

Windows Vista won't let you use region-free DVD drives?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/6107efbe89804fd48a789dea010a7057#6107efbe89804fd48a789dea010a7057 Mon, 11 Sep 2006 23:00:18 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/6107efbe89804fd48a789dea010a7057#6107efbe89804fd48a789dea010a7057 W3bbo 26 http://channel9.msdn.com/Niners/W3bbo/Discussions/RSS Coffeehouse - SPDIF in Vista
W3bbo wrote:
Windows Vista won't let you use region-free DVD drives?

WMP and Media Center won't, apparently. PowerDVD has no trouble with them, even on Vista.

That's not the topic of this discussion either, please keep this thread about SPDIF.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/7d41f961468541668a619dea010a7080#7d41f961468541668a619dea010a7080 Mon, 11 Sep 2006 23:05:15 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/7d41f961468541668a619dea010a7080#7d41f961468541668a619dea010a7080 Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista Can you hear system alerts when S/PDIF is the default?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/784fc7430f354cc3a37c9dea010a70a8#784fc7430f354cc3a37c9dea010a70a8 Tue, 12 Sep 2006 01:21:50 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/784fc7430f354cc3a37c9dea010a70a8#784fc7430f354cc3a37c9dea010a70a8 Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:
Can you hear system alerts when S/PDIF is the default?


Hold on Matt - you're Maurits?  Why didn't you tell me?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/7cac79dfbedd4d0584139dea010a70d1#7cac79dfbedd4d0584139dea010a70d1 Tue, 12 Sep 2006 04:27:13 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/7cac79dfbedd4d0584139dea010a70d1#7cac79dfbedd4d0584139dea010a70d1 LarryOsterman 26 http://channel9.msdn.com/Niners/LarryOsterman/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:
Can you hear system alerts when S/PDIF is the default?

Yes.

Although with the X-Fi, the global format for the "Spdif-output" is set to "16 bit, 44100kHz" by default which my decoder apparently doesn't support since the sound gets sped up. Setting the format to "16 bit, 48000kHz" fixes it.

EDIT: Just to be clear, everything works normally with the SPDIF output, except actual AC3 or DTS passthrough, which only works in the audio control panel (by using the test option) and in Media Center, but not anywhere else.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/9d725f4d79b04eb9affe9dea010a70fb#9d725f4d79b04eb9affe9dea010a70fb Tue, 12 Sep 2006 10:17:27 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/9d725f4d79b04eb9affe9dea010a70fb#9d725f4d79b04eb9affe9dea010a70fb Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista Are you using this driver for the Creative?
http://tinyurl.com/kca2r

There's this intriguing caveat...

* AC-3/DTS decoding (only in Windows Vista 32-bit)

AFAICT, the X-Fi isn't HD audio compliant, so it won't work with the generic "HD Audio" inbox driver.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/8ba070934aef4efa82729dea010a7124#8ba070934aef4efa82729dea010a7124 Tue, 12 Sep 2006 15:03:39 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/8ba070934aef4efa82729dea010a7124#8ba070934aef4efa82729dea010a7124 Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:
Are you using this driver for the Creative?
http://tinyurl.com/kca2r

There's this intriguing caveat...

* AC-3/DTS decoding (only in Windows Vista 32-bit)

I am using that driver, but that isn't relevant here. That remark means that the driver isn't capable of doing AC3/DTS decoding in Vista x64. However, I don't need the driver to do it; I need it to output the undecoded signal to my external decoder, which it is perfectly capable of doing (as I said, using the "test" option in control panel and playing DVDs with media center works correctly, just everything else doesn't).

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/57acfc5b0fb04e31a7079dea010a714e#57acfc5b0fb04e31a7079dea010a714e Tue, 12 Sep 2006 15:41:07 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/57acfc5b0fb04e31a7079dea010a714e#57acfc5b0fb04e31a7079dea010a714e Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista It would be interesting to see whether WMP worked if you installed a 32-bit version of Vista, though.  Maybe for some reason WMP is decoding the digital audio and then re-encoding it.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/a7a276e4dd5449919b459dea010a7177#a7a276e4dd5449919b459dea010a7177 Tue, 12 Sep 2006 16:04:36 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/a7a276e4dd5449919b459dea010a7177#a7a276e4dd5449919b459dea010a7177 Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista I have a Media Center PC with an onboard sound controller, called C-Media AC97 Audio Device. I see a Digital Output device in Control Panel -> Sound. But when I choose that output device in the volume mixer, it says that there is no device.

Does anyone know what I need to do to get the digital output device work for this sound controller? I run Vista RC1, and don't even have Windows XP Media Center installed anymore, so now I'm stuck with the poor analog sound quality. [C]

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/cbf7aae27f83425a8e3b9dea010a71ba#cbf7aae27f83425a8e3b9dea010a71ba Mon, 02 Oct 2006 17:29:16 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/cbf7aae27f83425a8e3b9dea010a71ba#cbf7aae27f83425a8e3b9dea010a71ba Eivind Gussiås Løkseth 26 http://channel9.msdn.com/Niners/eloekset/Discussions/RSS Coffeehouse - SPDIF in Vista eloekset, can you open another thread for this? I would also prefer for this thread to stay concentrated on SPDIF pass-through as well (since I use it when doing music composition and have contemplated upgrading to vista on my composition computer (but haven't because of support issues from the composition software company)).

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/47a683ead45d4fe097519dea010a71e6#47a683ead45d4fe097519dea010a71e6 Mon, 02 Oct 2006 18:54:29 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/47a683ead45d4fe097519dea010a71e6#47a683ead45d4fe097519dea010a71e6 Jason Olson 26 http://channel9.msdn.com/Niners/JasonOlson/Discussions/RSS Coffeehouse - SPDIF in Vista Just an update: according to MS, both the "SPDIF doesn't work in WMP" and the "stutters in media center using SPDIF" issues are supposed to be fixed in future builds. We will see. Smiley

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/bd09e114d2d743dc8da59dea010a7211#bd09e114d2d743dc8da59dea010a7211 Mon, 02 Oct 2006 19:12:59 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/bd09e114d2d743dc8da59dea010a7211#bd09e114d2d743dc8da59dea010a7211 Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista According to Raymond, any genuine original RPC1 DVD-Drives will have ceased to function by now, so the fact that Vista will not support them will have minimal impact in the real world!

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/91f9f2387d80424abcb29dea010a723c#91f9f2387d80424abcb29dea010a723c Mon, 02 Oct 2006 22:05:28 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/91f9f2387d80424abcb29dea010a723c#91f9f2387d80424abcb29dea010a723c eddwo 26 http://channel9.msdn.com/Niners/eddwo/Discussions/RSS Coffeehouse - SPDIF in Vista waiting for the fixed SPDIF passthrough Smiley in the meantime I've setup AC3 Filter to encode into Dolby Prologic II works great!

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/bbbdad6405044257af2c9dea010a7281#bbbdad6405044257af2c9dea010a7281 Thu, 05 Oct 2006 17:15:43 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/bbbdad6405044257af2c9dea010a7281#bbbdad6405044257af2c9dea010a7281 Lee_Nover 26 http://channel9.msdn.com/Niners/Lee_Nover/Discussions/RSS Coffeehouse - SPDIF in Vista

Sven Groot wrote:

On Vista, I get two audio devices (or "end-points" I suppose). One is called "Speakers", the other is "Spdif-output" (for the X-Fi) or "Digital output" (for the Realtek). The Speakers one is the default audio device by default.
........
So far, regardless of whether I set "Speakers" or the specific "SPDIF" option as the default, no app can successfully use SPDIF.
........
 

How to change default audio device ?
If default audio device can be changed by program
i think app can successfully switch to SPDIF.
But in new API i only find Get default audio device (IMMDeviceEnumerator::GetDefaultAudioEndpoint)

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/ba39c35c865d46f4872d9dea010a72c7#ba39c35c865d46f4872d9dea010a72c7 Wed, 25 Oct 2006 15:28:21 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/ba39c35c865d46f4872d9dea010a72c7#ba39c35c865d46f4872d9dea010a72c7 Reinhard 26 http://channel9.msdn.com/Niners/Reinhard/Discussions/RSS Coffeehouse - SPDIF in Vista Apps can't change the default audio device easily, but they can get notified when the user changes the default audio device; see IMMNotificationClient::OnDefaultDeviceChanged

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/cdff5a16e0c744f982579dea010a72f4#cdff5a16e0c744f982579dea010a72f4 Wed, 25 Oct 2006 16:07:19 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/cdff5a16e0c744f982579dea010a72f4#cdff5a16e0c744f982579dea010a72f4 Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista Maybe not easily, but they can do it. Media Center can, and I'll just assume MS has been nice enough not to use undocumented interfaces for that.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/66431347077147b3b6c89dea010a731c#66431347077147b3b6c89dea010a731c Wed, 25 Oct 2006 16:11:46 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/66431347077147b3b6c89dea010a731c#66431347077147b3b6c89dea010a731c Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista
Sven Groot wrote:
Maybe not easily, but they can do it. Media Center can, and I'll just assume MS has been nice enough not to use undocumented interfaces for that.

Thanks for your information.
i have another problem.
In SPDIF Device "format supported" property page, i only found three items "DTS" "Dolby Digital" "WMA".
Does it mean that VISTA doesnt support "AAC" foramt?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/dc3c1c7345ee40d2b2b99dea010a7346#dc3c1c7345ee40d2b2b99dea010a7346 Wed, 25 Oct 2006 18:00:58 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/dc3c1c7345ee40d2b2b99dea010a7346#dc3c1c7345ee40d2b2b99dea010a7346 Reinhard 26 http://channel9.msdn.com/Niners/Reinhard/Discussions/RSS Coffeehouse - SPDIF in Vista
Sven Groot wrote:
Media Center can


Hmmm... I don't know how they're doing that.  Maybe they're scripting mmsys.cpl.

I'm a little concerned about Raymond Chen's dictum "what if two programs did this?" -- I could easily see troubles arising from two programs that want to fight over the default audio device.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/0ff3c392856f4483a2869dea010a736f#0ff3c392856f4483a2869dea010a736f Wed, 25 Oct 2006 18:28:18 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/0ff3c392856f4483a2869dea010a736f#0ff3c392856f4483a2869dea010a736f Matthew van Eerde 26 http://channel9.msdn.com/Niners/Matthew van Eerde/Discussions/RSS Coffeehouse - SPDIF in Vista
Matthew van Eerde wrote:

Sven Groot wrote: Media Center can


Hmmm... I don't know how they're doing that.  Maybe they're scripting mmsys.cpl.

I'm a little concerned about Raymond Chen's dictum "what if two programs did this?" -- I could easily see troubles arising from two programs that want to fight over the default audio device.


Matt brought this up internally. The answer is that setting the default audio device is an operation that's reserved for the user (like pinning items on the start menu, etc).  There is no documented mechanism that can be used to change the default devices, because it's the USERs choice, not some random application's choice.

MediaCenter is a part of the operating system (and thus can use internal-to-the-os functionality), and it doesn't change the default audio device without asking the user to choose.  This is just fine, since the USER is still in control.

And yes, think about what if two programs 3rd party audio solutions did this?

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/3efa2d33437940ca8ad39dea010a739f#3efa2d33437940ca8ad39dea010a739f Thu, 26 Oct 2006 03:17:28 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/3efa2d33437940ca8ad39dea010a739f#3efa2d33437940ca8ad39dea010a739f LarryOsterman 26 http://channel9.msdn.com/Niners/LarryOsterman/Discussions/RSS Coffeehouse - SPDIF in Vista It would be better perhaps if an app could use an audio device that's not the default. As it stands, SPDIF only works when I manually set the SPDIF device as the default. It would be nice if a future version of PowerDVD could just use that device even if it was not the default.

Not that it matters at the moment, the situation hasn't improved much over my complaints in this thread. Media Center has been fixed, no more stuttering and drop-outs. But Media Center remains the only application that can use SPDIF. WMP and PowerDVD still can't in 5744.

Which means that I still have to boot XP to watch a DVD. Sure I could in theory watch it in Media Center, but I vastly prefer PowerDVD over Media Center, and besides MC won't let me play any DVDs that aren't region 2 (which is almost half my collection).

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/25b277d43bf74413a67f9dea010a73cc#25b277d43bf74413a67f9dea010a73cc Thu, 26 Oct 2006 09:25:07 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/25b277d43bf74413a67f9dea010a73cc#25b277d43bf74413a67f9dea010a73cc Sven Groot 26 http://channel9.msdn.com/Niners/Sven Groot/Discussions/RSS Coffeehouse - SPDIF in Vista
Sven Groot wrote:
It would be better perhaps if an app could use an audio device that's not the default. 

i think app can use audio device that's not the default.
i use windvd in vista 5600. if i set spdif device as default, it can SPDIF out. 
But it can't select SPDIF out if defaut device is not SPDIF device. 
I try the sample code in Microsoft vista sdk. it can select any device on your computer to output audio sound.
To support switching SPDIF app should use new window api.

]]> http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/966e96f4a0da4ace94269dea010a73f9#966e96f4a0da4ace94269dea010a73f9 Thu, 26 Oct 2006 11:36:14 GMT http://channel9.msdn.com/Forums/Coffeehouse/228771-SPDIF-in-Vista/966e96f4a0da4ace94269dea010a73f9#966e96f4a0da4ace94269dea010a73f9 Reinhard 26 http://channel9.msdn.com/Niners/Reinhard/Discussions/RSS