Gerzon Stereo Microphone Array

A near-coincident stereo microphone array described in detail by British audio engineer Michael Gerzon (1945 – 1996) but also credited to Tony Faulkner. It comprises a pair of cardioid microphones with capsules spaced 5cm apart at a mutual angle of 120°. The resulting SRA is 130 degrees. This technique captures both time and level differences between channels, and is comparable to similar techniques such as ORTF, RAI, DIN, NOS and others, but with a noticeably smaller spacing and wider mutual angle. It is often used with a shuffling process to enhance the sense of spaciousness at low frequencies.