Xonar DG 5.1 Help

Bezzaboy1234

Bezzaboy1234

Bezzaboy1234

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Hello, I Was Wondering if There Is Any Way To Get The Xonar DG 5.1 To Play Undecoded sound Straight To My Sony Amp, as My Amplifier does A Much better Job, And I Have No idea How To Get The Sound Card To Just Play It To My Amp, Which Has A Much Clearer Mutli Channel Decoder. Or If the Xonar Cant, Can My Asus P8P67 B3 Revision motherboard Do It?

Thanks

Rob.
 
Isn't there an option to 'set SPDIF to DD' in the CP somewhere? Also make sure that Windows is set to allow application override and that nothing else like ffdshow is overriding it.
 
The DG doesn't support DD or DTS on-the-fly encoding so PCM is stereo only. You can send pre-encoded DTS/DD like in a DVD but games won't work.
 
Im Only Interested In It For Watching A Few Films On My PC (Mkv's) And Was Just Wondering Why My Amp's blue Multi-Channel Decoding Light Is Not On, So Is There No Way To Get It Too Work?

My Xbox Supports It Fine =/
 
Thats What I Was Told Would Work, i Dont want The Xonar To Do Any Of The Decoding/Proccessing or whatever, I Just want The Pure Optical Sound Going To The Amp, So It Can Decode It/Encode It Or whatever :)
 
What menu options are there in the Xonar control panel? I can check when I get home but as I said above, I'm sure there's some option to set the SPDIF to DD.
 
Robbie G said:
On-the-fly encoding? You mean decoding. Anyway he specifically says he wants to send it encoded:
Click to expand...

No, he means encoding.

The bigger Xonars can encode on the fly to DD (Dolby Digital Live). This feed goes over optical to the amp, where it is a acceptable format for decoding. PCM is an alternative but in my experience isn't as widely supported on amps.
 
What he wants, at least from what I can gather is, to send the 5.1 audio from the MKV being played to the AV receiver to be decoded. The problem is, that MKV's will likely have AC3 audio streams. AC3 is essentially the same as Dolby Digital, but it isn't quite so simple in getting it to work.

The DG can indeed pass on encoded audio tracks from DVD's to an external AV receiver to decode, with no problem. Getting it to do the same thing from an MKV for eg, is much more difficult.
 
joeyjojo said:
No, he means encoding.

The bigger Xonars can encode on the fly to DD (Dolby Digital Live). This feed goes over optical to the amp, where it is a acceptable format for decoding. PCM is an alternative but in my experience isn't as widely supported on amps.
Click to expand...

Why does he need the sound card to encode the DD? Surely he can get the software to do that and allow the Xonar to pass through the DD signal?
 
No, only the sound card can encode 5.1 PCM into 5.1 DTS/DD, believe me I've searched and searched for an alternative and there isn't one.

As I said before watching DVDs which have 5.1 DTS or DD you can select the S/PDIF passthrough option as the audio device which will send the pre-encoded audio to the amp, for for audio that is still PCM the only options you have is an expensive sound card, using HDMI or using analogue.
 
S/PDIF standard has been around for years, it was originally designed for stereo PCM and thus hasn't the bandwidth for more than 2 channels. DTS/DD are just 2 compression methods designed to cram an extra 4 channels to the receiver. HDMI was designed with multi-channel audio (5.1, possibly 7.1 I'm not sure) in mind and thus the 1.3 (I believe) standard has easily enough bandwidth for 5.1 audio as well as high res video.
 
with that xonar you can:

* send Dd and DTS streams straight over the spdif output without decoding them (known as bitstreaming)
* send 2 channel pcm stereo

you can not:

* send LPCM (multi channel pcm) from a Hd film over spdif.



if you want to bitstream dvd audio (48khz, DD or DTS usually) then it'll be in the settings menu of whatever software player you use. if you want to send audio from a hd film (DD TrueHD, DTS Master audio ext) then that is qite a bit more involved. You will need to first decode the audio in software then re-encode it in to DD/DTS for the soundcard to process.
 
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yep :)

vlcbitstreaming.jpg


I've got it bitstreaming 5.1 Dolby digital over hdmi to my amplifier right now :) if you have issues with it though, try media player classic instead - the bitstream output of VLC is known to be a little problematic for some people.
 
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