https://www.hbkworld.com/en/solutions/applications/acoustics/noise-source-identification/spherical-beamforming
Spherical Beamforming - Spherical Microphone Array | Brüel & Kjær
Spherical beamforming is used for in-cabin noise and leak detection, and it is a quick way of mapping sound pressure and intensity from all directions.
spherical beamformingmicrophonearray