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Layering tracks: power supply problem

Discussion in 'Recording' started by lebatte, Feb 26, 2008.

  1. lebatte

    lebatte Guest

    I recently received an SM57 and an M-Audio Fast Track which connects to my laptop via USB (and is thus powered through this connection). The Fast Track has a headphone jack on it with which I can hear either the laptop audio output or what I'm recording live, depending on the mixer knob setting.

    I use Audacity to record my tracks, usually, which has an option to record new tracks while the previous tracks are playing. This makes recording songs solo very easy. However, when using my new Fast Track, when I try to do this (record and listen at the same time), the audio output from the laptop becomes heavily distorted.

    Is this problem due to the fact that not enough power comes through the USB to power both my mic and my headphones? My headphones are slightly high impedance, if that could have anything to do with it.

    Any recommendations? If there is a similar product to the M-Audio Fast Track that is externally powered, and if that would indeed fix my problem, please suggest hardware. I can still return this thing if necessary.

    Edit - Actually, I just tried it again, and it's working well. Nevermind.
  2. Space

    Space Distinguished Member

    Jun 26, 2007
    I hate it when that happens :)
  3. Kev

    Kev Well-Known Member

    Nov 13, 2001
    even though things are now working

    generally any power supply deficiency can be a problem for both digital and analog circuits

    Your high impedance headphones might even help the situation as the current being drawn would be less than with low impedance headphones

    IF this was the problem
    you were trying to run multiple headphones
    a headphone amplifier would be a possible solution

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