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  1. Member
    Join Date
    Mar 2017
    Location
    Australia
    Search Comp PM
    Hello
    OK this is probably a really dumb question
    When using an external USB sound card to output 5.1 sound.
    Does the source signal have to already be 5.1 (multi channel) to output true 5.1 ?
    Or does the sound card actually create the 5.1 output even if the source is only 2 channel ?
    I am talking good quality cards here (Creative Sound Blaster or similar ilk)
    As always any advice is appreciated
    Thanks
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  2. Without additional signal processing rule is simple - you get at the output same signal as feeded to the input.
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  3. Member darkknight145's Avatar
    Join Date
    Feb 2007
    Location
    Australia
    Search Comp PM
    Sound cards are not magical!
    It doesn't matter whether the sound card is internal or external, to get TRUE 5.1 out you must have 5.1 going in, otherwise it will only be simulated at best.
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  4. Member
    Join Date
    Mar 2017
    Location
    Australia
    Search Comp PM
    Thanks everyone
    Now I know
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