World’s first acoustically transparent spherical camera

Planar acoustic cameras are compact but can only locate sound sources placed in front of the camera. To get a 360° field of view, we patented a novel spherical camera that was acoustically transparent. Existing spherical cameras were either full inside and too small to locate low frequency sounds, or were bigger and packed with cables at the center thereby disturbing wave fronts. Ours, an icosahedron, was fully empty: the key was to hide all the cabling inside the faces of the icosahedron, enabling waves to propagate undisturbed and get an unparalleled precision.