Church Sound Files: Getting Your Microphone Positioning In Order
Correct mic positioning. Sometimes it’s just a matter of personal taste, but sometimes there are tried and true ways of most effectively positioning your microphones.

March 30, 2011, by Tim Vear

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Microphone positioning and technique is largely a matter or personal tastes - usually whatever “sounds right” probably is right.

Nevertheless it’s a good idea to remind ourselves of some of the basics for getting there.

Following are a few tips that you might consider following when micing musical instruments for sound reinforcement.

• Try first to get the instrument to sound good acoustically before miking it.

• Use a mic with a frequency response that is limited to the frequency range of the instrument.

• To determine a good starting mic position, try closing one ear with your finger. Listen to the sound source with the other ear and move around until you find a spot that sounds good - put the mic there.

However, this may not be practical (or healthy) for extremely close placement near loud sources.

• Remember that the closer a mic is to a sound source, the louder the source is compared to reverberation or ambient noise.

• Place the mic only as close as necessary, keeping in mind proximity effect.

• When possible, use as few microphones as possible due to the Potential Acoustic Gain rule which tells us (among other things) that the volume level of a system must be turned down for every mic added in order to prevent feedback.

• If the sound from your loudspeakers is distorted even though you did not exceed a normal mixer level, the mic signal may be overloading your mixer’s input.

To correct this situation, use an in-line attenuator or pad to reduce the signal level from the microphone, or just back it away from the source some.

• More than anything, experiment and listen!

(Thanks to Shure for the tips.)



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Church Sound Files: Getting Your Microphone Positioning In Order
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