TrueHD sound for HDVD not working on Vista, PowerDVD over SPDIF

Discussion in 'AnyDVD HD (Blu-ray issues)' started by bachuka, Jul 9, 2007.

  1. bachuka

    bachuka Well-Known Member

    Has anyone been able to get TrueHD sound to work on HDDVD movies on Vista 32/Powerdvd 7.3 v2911 over SPDIF? When I choose TrueHD over SPDIF, my receiver only reads it as a 2.1 source whereas if I choose dolby digital plus it reads it as 5.1 or more.

    Any one get truehd sound to work over SPDIF? I'm using a creative external sound card Audigy 2 NX and connecting to my receiver over optical.
     
  2. bingobill

    bingobill Well-Known Member

    It's not possible to get HD audio over SPDIF, there's not enough bandwidth. There is also no HDMI solution at the moment for HD audio for the PC, your only solution currently is to us the anologue connections.

    I'm sure someone will come along and offer a better explanation.
     
  3. SamuriHL

    SamuriHL Retired Moderator

    That's not true. AFAIK, there are NVidia cards out there right now that do both audio and video through HDMI. I don't (yet) have one, but, I do believe they support audio through HDMI.
     
  4. bachuka

    bachuka Well-Known Member

    Thanks guys. I believe my old toshiba HDA1 standalone HDDVD player I was able to get TrueHD over SPDIF optical. My receiver read it as DTS 5.1.
     
  5. SamuriHL

    SamuriHL Retired Moderator

  6. Adbear

    Adbear Well-Known Member

    The nvidia and ATi cards that let you play the audio thru the HDMI have an internal spdif connection that connects to the spdif on your motherboard or soundcard, as of yet I havn't seen any graphics cards that have a full built in soundcard that either decodes or passes thru the full true HD
     
  7. SamuriHL

    SamuriHL Retired Moderator

    Fascinating. That's not very useful to me. I'll be holding off on upgrading my HTPC for a while anyway, so, hopefully they remedy this problem in the future.
     
  8. bingobill

    bingobill Well-Known Member

    The OP question was specifically about HD audio and I did specifically answer about HD audio. ;)
     
  9. roog

    roog Well-Known Member

    Right now, they're probably caught with their pants down not designing digital audio into their HDMI cards. I think we're at least a generation away from what really makes sense.
     
  10. bachuka

    bachuka Well-Known Member

    thanks samurihl, that was a good read....i'm just waiting for a video card or sound card that can properly pass truehd to my receiver, i believe powerdvd can handle truehd...I would rather not use analog because i believe that limits you down to only 5.1, i have plenty of movies in 6.1 I want to play correctly as well
     
  11. SamuriHL

    SamuriHL Retired Moderator

    Yea, I'm going to hold off on upgrading my video machine(s) until I can get the right hardware, as well. It doesn't seem that we're quite there yet. We'll see what the picture looks like this time next year.
     
  12. jdohn2002

    jdohn2002 Well-Known Member

    Most current recievers can't handle the high bitrates for HD Audio (24.5 Mbps bluray) and (18 Mbps HD-DVD). The sound is bit-for-bit identical to the studio master audio. So you'll need a new reciever as well to get the best sound out of an HD Movie. The only HD-Audio capable recievers on Circuit City's website were an Onkyo TX-SR605 for $475 and an Onkyo TX-SR805 fro $989.
     
    Last edited: Jul 11, 2007
  13. Humpa

    Humpa Well-Known Member

    My Auzentech audio card has 8 (7.1) analog outputs. I haven't upgraded my receiver yet, so I just use 5.1 - spent too much money on my HTPC, but audio is next. ;)

    BTW, the Auzentech X-Meridian 7.1 card sounds amazing, even with my wav files (I have my cd collection saved in wav). I used to use spdif with SoundBlaster and also TurtleBeach - no comparison
     
  14. roog

    roog Well-Known Member

    Are there any movies yet that support TrueHD?
     
  15. James

    James Redfox Development Team Staff Member

    No. The correct approach is to let the player do the decode and mixing, and to feed the decoded channels to the amplifier. Otherwise menu sounds, mixed tracks (in movie experience) won't work.
    You *do not need* and you *do not want* a new receiver.
     
  16. James

    James Redfox Development Team Staff Member

    Yes, there are a lot HD DVD movies woth TrueHD audio (and DTS Master HD).
     
  17. bachuka

    bachuka Well-Known Member

    That sounds like a good sound card....does it support Vista well and does it have SPDIF out just in case?
     
  18. Humpa

    Humpa Well-Known Member

    Yes it does.
    But I see they are not making the X-Meridian any longer - not sure what is there latest and greatest:
    http://www.auzentech.com
     
  19. jdohn2002

    jdohn2002 Well-Known Member

    Without a Dolby True HD capable amplifier/reciever the LPCM audio wil only be a high quality downmix, but not identical to the original source. See this link for more info http://en.wikipedia.org/wiki/Dolby_TrueHD
     
  20. Humpa

    Humpa Well-Known Member

    Hey jdohn (or anyone), am I getting TrueHD out of my setup?
    Is PowerDVD 7.3 Ultra able to process the different HD audio formats and send them to my auzen Meridian 7.1 to output over the 8 analog channels?
    Or am I going to want to get a new receiver and a true 1.3 HDMI card (once one is available)?

    It sure sounds great right now (and looks great too!), but I'd like to know if I'm missing anything.

    Thanks ...