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phasing issues

Discussion in 'Recording' started by johnnykap, Jul 17, 2007.

  1. johnnykap

    johnnykap Guest

    I've set up a spare bedroom for recording electric guitar. I'm playing thru a Hughes and Kettner Switchblade 100W combo. I'm using a 3 mic technique. The first is a dynamic SM-57 placed about an inch from the grill cloth, midway between the center cone and the outer edge, pointing straight to the speaker. The second is a ribbon mic (Fathead Ribbon) that no matter where I put it (1"-6" away from the grill cloth), I'm getting phasing. I've also got a condenser mic about 5-6' back to pick up the room sound. When I click the phase switch in my sequencer (Sonar) on one of the 2 close mic channels, the sound thickens up nicely and seems to be acceptable. Is it normal to have to use a phase switch like this? In an ideal world, wouldn't it be better to not have to do that? Any advice would be appreciated.
     
  2. mark02131

    mark02131 Active Member

    You will always be out of phase at a specific frequency based on the distance between the two mic's. at some frequency the wave length with exactly match that distance and at that frequency you will be out of phase. There is nothing wrong with using the phase switch but I think trying different mic placement may be a better choice unless you like the sound you are getting, then just use the phase switch and go with it.
     
  3. Link555

    Link555 Well-Known Member

    Google the 3 to 1 rule for mic placement.

    Also keep in mind the phase switch usally just provides a 180 degree phase change, if your phasing is not perfectly out of phase at all frequenicies (can never happen) your will still have issues. The 3 to 1 rule helps reduce phase issue by shear distance.
     
  4. johnnykap

    johnnykap Guest

    Thanks for the responses, ladies. The problem was that the ribbon mic was backwards (dang figure 8 pattern) !!! 180 degrees out of phase. Problem solved. Thanks for your help, I'm gonna check out the 3 to 1 rule.
     
  5. Link555

    Link555 Well-Known Member

    You could use Mid side with that combo. Google MS mic technique too.
     
  6. Mandachuva

    Mandachuva Guest

    You could try reading this madman's recording distorted guitar thread:
    http://www.badmuckingfastard.com/sound/slipperman.html

    Extremely informative. Loads of fun too, for most people. :wink:
     
  7. johnnykap

    johnnykap Guest

    I've read the slipperman discussion. Very good stuff indeed.
     
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