Combined NAH and Beamforming using the same microphone array

  title={Combined NAH and Beamforming using the same microphone array},
  author={K. B. Ginna and J. Halda},
  • K. B. Ginna, J. Halda
  • Published 2005
This paper deals with the problem of how to design a microphone array that performs well for measurements using both Nearfield Acoustical Holography (NAH) and Beamforming (BF). NAH typically provides calibrated intensity maps, while BF provides unscaled maps. A method is described which enables sound intensity scaling of BF maps to be performed in such a way that area integration provides a good estimate of the sub-area sound power. Practical results will also be presented. 

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