How to Make a Microphone Isolater
Dynamic microphones with cardiod polar patterns are popular in recording studios because of their ability to block out unwanted noise. While the cardiod pattern reduces sound sources from the rear and sides of the microphone, some unwanted sounds manage to get through. Further isolating the microphone will reduce the likelihood that unwanted sources will be captured. Although expensive commercial sound screens and gobos are available, DIY microphone isolation can be achieved with inexpensive materials.
- 22-by-28-inch poster board
- 22-by-28-inch egg-crate-style mattress foam
- Glue
- Hole punch
- Fishing line
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Instructions
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1
Lay the poster board on a flat surface
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2
Apply a layer of glue to the poster board and attach the mattress foam before the glue dries.
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3
Punch holes in the four corners of the poster board and foam and tie two 14-inch lengths of fishing line to the holes on one side.
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4
Tie the loose ends of the fishing line to the other side of the foam to create a curved enclosure.
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5
Point the microphone at the sound source and clip the curved enclosure to the mic stand to block out unwanted noise.