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AMD HDMI Sound Card (video card)

Discussion in 'Audio, Video & Home Theater' started by slyfox2151, May 24, 2011.

  1. slyfox2151

    slyfox2151

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    hello,


    im wondering if there is much difference between the 4xxx vs 5xxx vs 6xxx in terms of sound output.

    are there any unique features ect....



    tried Google'ing, however i cant find any specific information.
     
  2. Chevalr1c

    Chevalr1c

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    AFAIK, there is no difference in how the output via HDMI works.
     
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  3. slyfox2151

    slyfox2151

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    or any difference vs Nvidia?
     
  4. freaksavior

    freaksavior To infinity ... and beyond!

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    4xxx does pcm and 5x/6x do bitstreaming.
     
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  5. imperialreign

    imperialreign New Member

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    I thought the audio device on the cards has been the same since the 3000 series?

    TBH, I really don't know . . . never cared much to dig into the audio on the ATI cards :p
     
  6. CJCerny

    CJCerny

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    This is the correct answer. If you don't know the difference between PCM and bitstreaming, now would be a good time to ask.
     
  7. cheesy999

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    The 5/6 will also output in the hd formats like dts master hd
     
  8. AsRock

    AsRock TPU addict

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    Yes using multichannel, i know the 6970 i have can get 7.1 and can do DTS an DD with sample rates upto 192KHz
     
  9. slyfox2151

    slyfox2151

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    i was hoping it could be use'd to convert DTS HD / MA to PCM.


    my 7.2 receiver only supports DTS / DD 5.1 or uncompressed 8 channel PCM.






    my biggest issue is the fact i need to change my audio output from 7.1 / 5.1 to Stereo to get upmixing to work on the receiver.
    Music i need to have it set to Stereo with no Up Mixing.
    Movies with 2.0 output needs to be set to Stereo with PL2 X upmix
    Blu ray / DvD with 5.1 needs to be set to 5.1 with PL2 X up Mix
    Blu ray with 7.1 needs to be set to 7.1 with no upmix
     
  10. Chevalr1c

    Chevalr1c

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    Higher sample rates and/or more available sound channels? I did a quick search but only found stuff related to Bitstream Inc. (the font maker company).
     
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  11. slyfox2151

    slyfox2151

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    Bitstream is Compressed. it could be lossy or lossless, DD/DTS vs DD True-HD / DTS-MA.
    PCM is the Raw uncompressed audio.



    a receiver will at some point convert Bitstream to PCM and then output it to the amp/speakers.

    EDIT:
    convert is not really the right word here.... it will uncompress the Bitstream so it can get to the raw audio data.
     
    Last edited: Jun 1, 2011
  12. Chevalr1c

    Chevalr1c

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    So they relate to each other like FLAC (HQ lossless compressed audio) to Wave (uncompressed audio)?
     
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  13. slyfox2151

    slyfox2151

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    yeah.
     
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  14. freaksavior

    freaksavior To infinity ... and beyond!

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    Hence bitstreaming ;)
    This would be manual each and every time but you can use Arcsoft total media theater to play it out in PCM instead of have it compressed and then decoded.

    Not sure how this is realavent?


    There is no difference besides the fact
    A) the computer does the processing
    B) the Amp does the processing and shows DTS-HD MA on the receiver (which looks awesome)
     
  15. Silencer1980

    Silencer1980 New Member

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    yes previously said in thread

    only 4xxx,5xxx,6xxx with HDMI connection can passthru DTS-HDAudio...
     
  16. freaksavior

    freaksavior To infinity ... and beyond!

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    No, the 4xxx does PCM meaning the computer processes the audio.
    5xxx and 6xxx can do pcm, or bitstreaming, so either the pc does the processing, or the video card will send the AMP/Receiver the audio and let it decode it.
     

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