I often record my acoustic guitar with a SM-81 in a rectangular room. I have no foam setup or room sound enhancements. Just a plain old room. My audio recording teacher said I could benifit from a foam setup around my guitar. I was wondering what others are doing to improve there sound using foam especially for recording acoustic guitar.

Thank You for sharing,
-FBING

> My audio recording teacher said I could benifit from a foam setup around my guitar. <

Or if not foam, some other sort of acoustic treatment. The goal is to tame excess room ambience, and also to reduce the effects of comb filtering. Whenever you place a musical instrument or a microphone near a reflecting surface, the result is a series of peaks and deep nulls called comb filtering. Coupled with excess small room ambience, comb filtering gives that hollow, boxy, off-mike sound.

--Ethan