Sending Dolby Digital signals to external reciever?

[fraseyboy]

It doesn't appear to work. I play a DVD or file which has a Dolby 5.1 soundtrack and it seems to want to decode it BEFORE sending it to my receiver.

I have set the speakers to be connected by coaxial (digital) in the speaker settings of 7MC. Other media players (Zoom Player, PowerDVD) work fine with my receiver, outputting Dolby Digital fine. Why does 7MC not?

Thanks.

 

[mikinho]

What other decoders do you have installed? If you have ffdshow installed and configured make sure to disable the audio mixer.

 

[fraseyboy]

I have AC3Filter, FFDshow and the Cyberlink PowerDVD codecs installed.

Disable the audio mixer? Which audio mixer?

Edit: Oh you mean the audio mixer in FFDshow settings? I just disabled that now. Still not doing AC3 through my receiver though.

 

[fraseyboy]

Still looking for a solution...

 

[spliff]

DD or dts? Try KMplayer, free to dl and use.

 

[CBers]

I have AC3Filter, FFDshow and the Cyberlink PowerDVD codecs installed.

Disable the audio mixer? Which audio mixer?

Edit: Oh you mean the audio mixer in FFDshow settings? I just disabled that now. Still not doing AC3 through my receiver though.

Do you have AC3filter installed ??

Have a read from this post onwards.

 

[spliff]

If ur using optical out of ur soundcard you have to choose 2 channel out in W7. and let ur reciever upmix to 5.1.

 

[Schizoid]

Hi m8, I setup AC3Filter to pass all Dolby Digital and DTS through the SPDIF Optical to my receiver which decodes it for me, unless you have a Sound card that decodes DD and DTS which I no my Realtek HD doesn't so pass all of that to my receiver.

 

[HKeleher]

Your system specs show you using a Audigy 2 ZS Platinum. Does this has a S/PDIF output connection (either coaxial or optical?)

My media center PC has Realtek 888 HD or something like that with a S/PDIF header on the motherboard. In W7 under my audio devices I choose the S/PDIF output as my default output device and plug that into the coaxial header bracket to my receiver. When I use the sound card control panel I'm able to test AC3 and DTS which works properly and let's me know the system, sound card and receiver are all working properly and passing the signal.

In order to pass that information from other applications I use FFDShow and configured it to passthrough those streams and this works fine. It boils down to your output device and whether or not it support sending those formats. The FFDShow is doing it for my media center and WMP. PowerDVD will do it depending on your default output device.

 

[fraseyboy]

Hi m8, I setup AC3Filter to pass all Dolby Digital and DTS through the SPDIF Optical to my receiver which decodes it for me, unless you have a Sound card that decodes DD and DTS which I no my Realtek HD doesn't so pass all of that to my receiver.

I have done so too. But it appears 7MC is not using AC3Filter.

Your system specs show you using a Audigy 2 ZS Platinum. Does this has a S/PDIF output connection (either coaxial or optical?)

My media center PC has Realtek 888 HD or something like that with a S/PDIF header on the motherboard. In W7 under my audio devices I choose the S/PDIF output as my default output device and plug that into the coaxial header bracket to my receiver. When I use the sound card control panel I'm able to test AC3 and DTS which works properly and let's me know the system, sound card and receiver are all working properly and passing the signal.

In order to pass that information from other applications I use FFDShow and configured it to passthrough those streams and this works fine. It boils down to your output device and whether or not it support sending those formats. The FFDShow is doing it for my media center and WMP. PowerDVD will do it depending on your default output device.

The problem is not that the SPDIF is not working. It works fine outside 7MC. I can view movies with Dolby Digital being sent out of Coaxial to my receiver, DTS and Dolby test fine, it's just 7MC which is the problem.

If it was a problem with Windows 7 I would not be posting in the Media Center forum. It is only an issue with Media Center. SPDIF out works fine with other programs and codecs.

Any ideas?

 

[mikinho]

1- Can you specify what decoders\codecs you have setup for MC7 to use (install Preferred DirectShow Filters Tweaker for Windows 7).

2- Are you running 32-bit or 64-bit?

3- What version of AC3Filter?

4- Did you run through the Media Center speaker setup?

 

[mikinho]

To add a little more. You have two routes you can go w/ either AC3Filter or FFDShow. I use FFDShow myself. So you'll need to:

1- Setup FFDShow to be used using the tweaker tool

2- Set AC3/DD5.1 & DTS options to SPDIF in FFDShow audio options

3- Disable Audio Mixer in FFDShow audio options

Btw, I read that MC7 was supposed to handle AC3 natively but I haven't seen it work.

 

[fraseyboy]

I have FFDShow set to be used with the tweaker tool. Isn't that only for video codecs though?

To add a little more. You have two routes you can go w/ either AC3Filter or FFDShow. I use FFDShow myself. So you'll need to:

1- Setup FFDShow to be used using the tweaker tool

2- Set AC3/DD5.1 & DTS options to SPDIF in FFDShow audio options

3- Disable Audio Mixer in FFDShow audio options

Btw, I read that MC7 was supposed to handle AC3 natively but I haven't seen it work.

I have done all these things. It still isn't working. I think the problem is that it is not using AC3Filter or FFDShow as my audio codec.

 

[CBers]

I have FFDShow set to be used with the tweaker tool. Isn't that only for video codecs though?



I have done all these things. It still isn't working. I think the problem is that it is not using AC3Filter or FFDShow as my audio codec.

No, FFDSHOW does video and audio.

What codecs, and versions, do you have installed ??

Are you running 32-bit or 64-bit W7 ??

 

[fraseyboy]

No, FFDSHOW does video and audio.

What codecs, and versions, do you have installed ??

Are you running 32-bit or 64-bit W7 ??

I am running 32-bit build 7100 Win 7.

I have the Shark007 codec pack which really only includes AC3Filter and FFDShow. AFAIK it included the latest versions when I downloaded it a week or so ago.

I know FFDShow does video and audio, but I thought that win7 ds codec tweaker thing was only for changing the video codecs.

 

[mikinho]

I am running 32-bit build 7100 Win 7.

I have the Shark007 codec pack which really only includes AC3Filter and FFDShow. AFAIK it included the latest versions when I downloaded it a week or so ago.

I know FFDShow does video and audio, but I thought that win7 ds codec tweaker thing was only for changing the video codecs.

I would recommend uninstalling the codec pack and installing only the components you need. Troubleshooting codec packs is a nightmare and they generally are overkill for all but the most obscure anime fan.

 

[Shark007]

I would recommend uninstalling the codec pack...

your advice comes from to many years of getting shafted by Klite.

 

[mikinho]

your advice comes from to many years of getting shafted by Klite.

No. I've never used a Codec Pack. But I've helped many users with problems associated with them.

I've never used yours and I'm not critizing yours in any way, most of the feedback on this forum is positive with respect to your codec pack.

It is generally much easier to help a user with WMC problems when they install each component individually.

 

[Shark007]

No. I've never used a Codec Pack.

Being a dev, you mostly have a testbox or partition where you do work without the worry of destruction. On that note, I promise you it installs without touching the native codecs and that it uninstalls cleanly leaving no foul residue.

You really should have a look at my pack. I think you'll be impressed with the Settings interface that I have created which is a fantastic tool for troubleshooting with.

 

[mikinho]

Being a dev, you mostly have a testbox or partition where you do work without the worry of destruction. On that note, I promise you it installs without touching the native codecs and that it uninstalls cleanly leaving no foul residue.

You really should have a look at my pack. I think you'll be impressed with the Settings interface that I have created which is a fantastic tool for troubleshooting with.

I've got more virtuals than I'd care to admit, as I'm sure you do as well . (I do love being able to boot into a VHD with W7)

I will give your pack a look