A Coincident Surround Microphone!
For recording directly to 5.0/5.1 and
6.0/6.1 surround systems.
The Milab SRND 360 is built around three matched DC196 rectangular capsules. These capsules are used as cardioids and placed at 120º to each other.
In a mono microphone, a double-membrane capsule can be used to
create an omni or a super-cardioid (as in figure). The list could go with for example a figure-of-eight.
By combining the signal from two adjacent cardioid capsules, a “virtual” output is created in-between them. Subtracting proper amount of the signal from the opposing real capsule would give this virtual output a cardioid pattern, which is identical to the “real” outputs.
The SRND 360 combines its three real capsules in different configurations to produce 6 individual cardioid outputs at 60º to each other. These outputs can be used in a wide variety of stereo, multichannel and surround formats.