jnorman wrote:
> Much of what i read suggest quite large spacing, like 6 feet, but in my studio, when i do a piano/violin duo or similar, i find that even 2 feet apart results in an overwide LR playback, too much separation, hole in the middle thing.
Many people seem to assume that you couldn't possibly get adequate stereo "separation" from omnidirectional microphones unless they are rather wide apart. But as you've found out, that's a misconception. I really don't know where it comes from, except to note that strangely, some people adhere to "visually driven" theories about audio even when they don't work.
A baffle of some kind can often help, as people here are suggesting; to me the best sounding type seems to be a sphere with the diaphragms of the microphones even with its surface. But even without a solid object between the microphones, you usually don't need wide spacing for good stereo pickup. And I would say that the spacing should be kept as narrow as possible consistent with good overall balance, to hold the "hole in the middle" effect to a dull roar.
--best regards