Ground Bounce

Discussion in 'Mixing' started by Greener, Apr 27, 2008.

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  1. Greener

    Greener Guest

    Hi,
    When playing back tracks from my laptop on other peoples amps if I use my AC cord for power on my laptop I get alot of ground bounce. If I run it from the battery problem solved... For an hour or so.
    Short of running an extension cord from a neighbours how can I kill this noise?
    Any help would be appreciated.
    Thanks.
     
  2. GentleG

    GentleG Guest

    you need to electrically decouple the audio signal
    for example
    http://www.palmergear.com/pli04.shtml
    I'm sure there are a lot similar solutions elsewhere

    cheers
     
  3. Greener

    Greener Guest

    Cheers and thank you kindly.
     
  4. Boswell

    Boswell Moderator Distinguished Member

    Joined:
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    Get a better-quality power supply for the laptop that does not generate so much noise on the ground line (not "ground bounce" - that is something altogether different associated with switching logic).
     
  5. Greener

    Greener Guest

    Thanks Boswell, indeed you are correct.
     
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