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Potentially Noobish Question.... Please Enlighten Me!!!

Discussion in 'Sound City' started by Alty, 7 May 2006.

  1. Alty

    Wise Guy

    Joined: 23 Oct 2004

    Posts: 1,878

    Location: East Riding of Yorkshire

    Using soundcards with digital out and connecting them to speaker setups such as the logitech z-5500 (purely as an example) - is the processing done by the amp associated with the speakers (located in the sub) instead of the processor on the sound card?

    The reason for asking is that I have just purchased an X-Fi Fatal1ty and have a rather nice PURE Digital Digitheatre 5.1 speaker set that I want to use. However, if the signal is going to go straight to the speakers and be processed by the PURE Digital amp then was the X-Fi essentially a wasted purchase?

    With outputting a pure digital signal - what part of the sound system actually does the processing?
     
  2. fish99

    Soldato

    Joined: 19 May 2005

    Posts: 5,055

    Location: Doncaster

    Firstly it's worth pointing out the X-Fi doesn't do DD encoding (called DD Live), so it'll only give you surround sound through digital if the source is already DD encoded, like a DVD. It won't give you surround sound in games.

    Assuming you are watching a movie though, then yes, the decoder used is located in the sub. X-Fi can do DD decoding but that would only be useful if you were using analogue output. With digital out I think the X-Fi would decode the signal and then output it in stereo. So you definitely want to use the decoder in the speakers, or switch to analogue.
     
  3. Alty

    Wise Guy

    Joined: 23 Oct 2004

    Posts: 1,878

    Location: East Riding of Yorkshire

    Analogue output meaning a single spdif cable I presume and not 2 phono cables(or single 3 1/5mm jack to 2 phono)?
     
    Last edited: 7 May 2006
  4. PieMaster

    Wise Guy

    Joined: 19 Feb 2005

    Posts: 1,234

    Location: Docklands, London

    Analogue output would be 3 miniplugs.

    Anything over SPDIF is some form of digital, whether its PCM, Dolby Digital or DTS.