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Originally Posted by Wolfy
What soundcard are you using and is it hooked into the videocard?
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See here...
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Originally Posted by nakedninja42
ATI 4870 decodes Dolby TrueHD DTS-HD MA to 5.1 or 7.1 according to ATI
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Wolfy, as nakedninja42 mentioned, the ATI Video Cards have onboard audio support. They decode the HD audio formats and send them as multi channel LPCM.
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Originally Posted by glogrono
That's weird cause I thought HD audio required more bandwidth than that. Can anyone confirm this?
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Very rarely... This of course depends on sample rate and bit depth but HD audio usually sits around the 2 - 4 Mbit/s mark.
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Originally Posted by nakedninja42
I had the onboard realtek 0889A i believe, but i disabled that and have been using the HDMI from ATI 4870. Since the posting I have disabled the onboard sound, and updated the drivers from the ATI site to 9.2. So far this has cured a lot of my issues. Ive decided that Totalmedia needs to release a few more updates, its only purpose now is for my HDDVD's and TrueHD. PowerDVD seems to work fine with Blu ray.
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I have no problems with Blu-ray on TotalMedia Theatre. From what I believe, it is the only media player that decodes HD audio correctly (beyond 48 kHz).
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Originally Posted by nakedninja42
As for the max audio bandwidth, I was wondering if that was due to limitation of the cable or the card. I recently went overkill and picked up the Monster Cable 1200 HDMI Blu Ray supporting 10.87.
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Not entirely necessary, but you have a good cable now so at least that is no longer a concern. Cables can't really be limited in a true sense. They can be tested and certified though. It is usually the interface that determines the bandwidth. That being said, a low quality cable simply wont work at all if too much data is being pushed through it. Remember the HDMI cables are listing Gbit/s, and HD audio is coded in Mbit/s... So that cable you just bought is capable of 11,130.88 Mbit/s.
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Originally Posted by nakedninja42
I have gotten PowerDVD 8 to run Patriot at Uncompressed LPCM 5.1 at 4800 and watched Batman Dark Knight running TrueHD 800 - 2200 during action. I think DTS-HD MA is the only thing that touches 6000. According to Config on PowerDVD it says that its running that on 5.1 at 6000. but from reading post i was wondering if i am getting that from powerDVD or is it downsampling to DTS-core
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If that is what is being displayed, then that is what is being decoded. If it were only the core being decoded a bitrate of 1.5 Mbit/s would be displayed.