Hamasaki Square

Microphone aray designed by the Japanese sound engineer Kimio Hamasaki. The Hamasaki Square is designed for capturing the ambient/diffuse part of a surround sound recording. It is a four-mic square with 1.8-2 m (5.9-6.6 ft.) between the figure-of-eight microphones, which are routed to left, right, left surround, and right surround at an appropriate level compared to the front array. The figure-of-eight microphones are pointed with their in-phase sensitive directions against the sides and with their nulls to the direct sound. Compared to other systems for ambiance recording, this system is the least sensitive regarding the distance between the main array and the ambiance array.