SM-57 Recording Interference

Discussion in 'Microphones & Recording' started by rygor, Mar 2, 2012.

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  1. rygor

    rygor Guest

    Hi,

    I recently bought an SM-57. I have problems when recording with it; I know that it is not the microphone or lo-z cable or lo-hi z adapter because I have used it in limited equipment circumstances and it performs well.]

    When I run it into my computer through the line-in, however, I get a chorus-like digital interference effect. No other mic I have used has done this, although I have only used USB mics thus far, and mainly condensers, not dynamic cardiod mics. What could be causing this interference? I know it is not the environment, but rather some part of my computer setup.

    Here is a link to a recording, it's with my old beat-up campfire guitar but you'll be able to hear what I am describing. (small file size)

    crap_mixdown.mp3

    Thanks,

    Ryan
     
  2. vtr

    vtr Active Member

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    Jan 19, 2009
    Bit of guesswork here, but it sounds like a delayed feedback loop. You may be listening to two copies (possibly the input and the output) of the sound combined (with a fair amount of latency in between).

    Also, line levels are lo Z and much higher than mic levels, the adaptor may not be of any real help.
     
  3. bouldersound

    bouldersound Real guitars are for old people. Well-Known Member

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    I'm going with delayed feedback loop. You're recording your input, plus the output which is slightly delayed, plus the output of that which is slightly delayed again and so on. Get a proper audio interface that's designed for what you're doing.
     
  4. TheJackAttack

    TheJackAttack Distinguished Member

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    Location:
    currently Billings
    Line in is an unbalanced mini TRS jack on most computers. Even if you have a converter it isn't likely it is matching the input. A USB mic won't present this problem because it is converted to digital prior to hitting the computer.
     
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