I'm thinking about maybe making a mic with 3 capsules to use as a stereo mic for recording instruments in my home studio. So a sort of flexible 2D stereo image mic, rather than a 3D soundfield.
I don't need full soundfield, as the room is not so good that I often want much of the back, top or underneath of the mic. Mounting a full tetrahedral setup seems like overkill for my likely use.
But I'm thinking of maybe front + left + right cardioid capsules, with a circuit to provide three outputs, which could then be combined in the daw to offer M/S or XY (at 45 degrees) or various form of mono multipattern.
I'm interested in suggestions for how the capsules should be placed. If they are cardioid capsules they'll need some air space around them. Should they be in a vertical line? or with the front capsule in front in a triangle?
Also suggestions for which inexpensive capsule would be most suitable. TSB2555 springs to mind but I'm not sure about the offaxis response, and maybe a smaller capsule would be better.
any suggestions?
