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Noise on the Firewire - where do I start?

Discussion in 'Recording Gear and Equipment [BG]' started by LowDown Hal, Sep 4, 2008.

  1. I recently purchased my first mixer / recording device. It's an Alesis Multimix8 Firewire.

    Everything seems fine from the mixer point of view.

    As soon as I plug in the computer, via the firewire interface, I notice noise coming from the monitors.

    Any clues, suggestions, ??

  2. skb5string

    skb5string Supporting Member

    Jun 3, 2007
    Clinton Township, MI
    If its a "Crackel" type of sound try inceasing the buffer size in the software.
  3. jkramer5


    Jul 14, 2008
    Fairfield, CA
    Ballanced speaker cables?
  4. I will give that a try. Thanks,

    However, just to be clear the noise happens as soon as I connect everything. It seems buffer size would only matter when recording and/or playing back?
  5. It's probably a ground loop.

    Try plugging the speakers or the mixer into different outlets and power bars.
  6. Well, major progress. Root of the issue is identified just needs a solution now :)

    It seem to be a laptop power supply induced noise.
    It goes away when I run off of battery.

    Everything is plugged into the same power strip which is properly grounded etc. I assume the AC/DC converter power pack is dropping the ground reference somehow.

    Since my current laptop is using a PCMCIA Firewire adapter I'm wondering if there is a BIOS setting for PCMCIA Slot Power?

  7. ReedSpacer


    Aug 9, 2006
    Is your laptop an Acer?
  8. Im having this exact same problem with a saffire unit and my Imac. Weird....

  9. Nope, it's a Dell Precision M70.
    Next week I'm getting an HP. Hopefully that will be better, but I want to figure this out.............
  10. Finally got the new HP laptop. Installed everything and still have the same problem.

    I has high hopes since this one even has the little noise suppressor barrel clamped on the power cord.

    Anyone ever figure out a solution to this problem?
  11. 2minkey


    Apr 23, 2006
    try turning off any wireless devices. sometimes that helps.

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