ATI 4870 HDMI CyberLink 8, TotalMedia Theatre, WinDVD 9

[Ryu77]

Originally Posted by Wolfy

What soundcard are you using and is it hooked into the videocard?

See here...

Originally Posted by nakedninja42

ATI 4870 decodes Dolby TrueHD DTS-HD MA to 5.1 or 7.1 according to ATI

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.

Originally Posted by glogrono

That's weird cause I thought HD audio required more bandwidth than that. Can anyone confirm this?

Very rarely... This of course depends on sample rate and bit depth but HD audio usually sits around the 2 - 4 Mbit/s mark.

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.

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).

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.

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.

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

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.