Near Field, Far Field and Acoustic Holography
Acoustic holography is a powerful technique for determining the structural acoustic behavior of surfaces and the sound fields they emit, as well as the visulization of structure-borne sound. It can be used to generate acoustic maps of the sound pressure, sound intensity or particle velocity. Furthermore, it enables one to estimate all acoustic field the sound power radiated by a source, and its directivity pattern. The reconstruction accuracy of the acoustic field from the hologram plays a significant role in determining the performance of the system.
Both of our all-in-one soundcameras Mikado and Octagon are quick in locating sound sources using either beamforming or near field methods.
The Fibonacci microphone array represents a new array family. Due to its microphone configuration and the integrated Intel® RealSenseTM Depth Camera, the Fibonacci is suitable for standard beamforming as well as for near-field acoustic holography and far-field measurements.