A microphone with a bi-directional polar pattern. See Polar Pattern, Bi-directional.
"I was nervous about the 40 year old lps I was sending to have transferred since the record companies won't reissue them anywhere. None of the lp's were my originals as I'd mostly worn them out anyway, so from thrift shops and online sellers I got hopefully less worn copies. I'm midway through the 5th CD and it sounds fine-even going the ..."