Near Field Beam Forming in Security Relevant Workspaces Using a Set of Linear Loudspeaker Arrays

Beigelbeck R, Pichler H. Near Field Beam Forming in Security Relevant Workspaces Using a Set of Linear Loudspeaker Arrays. In: AES Convention 116. Audio Engineering Society; 2004. Paper 6112. Available from: https://aes.org/publications/elibrary-page/?id=12730

@inproceedings{Beigelbeck2004_12730,
  author = {Beigelbeck, Roman and Pichler, Heinrich},
  title = {{Near Field Beam Forming in Security Relevant Workspaces Using a Set of Linear Loudspeaker Arrays}},
  booktitle = {AES Convention 116},
  note = {Paper 6112},
  year = {2004},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12730}
}

TY  - CPAPER
TI  - Near Field Beam Forming in Security Relevant Workspaces Using a Set of Linear Loudspeaker Arrays
AU  - Beigelbeck, Roman
AU  - Pichler, Heinrich
T2  - AES Convention 116
M1  - Paper 6112
PY  - 2004
DA  - 2004/05/06
UR  - https://aes.org/publications/elibrary-page/?id=12730
PB  - Audio Engineering Society
LA  - en
AB  - In security relevant workspaces, such as air traffic control rooms, near field beam forming in small spaces is an important task. In this paper, a sound design based on a set of n-linear loudspeaker arrays where each consists of m-elliptic loudspeakers is investigated from a mathematical point of view. Based on these results, optimized array parameters are determined and useful approximations are developed. Three-Dimensional near field directional diagrams of the sound pressure in front of the arrays are shown to visualize the sound field. These diagrams are plotted and evaluated for different frequencies and distances of the field point, in addition to variations in the control signal phases and amplitudes. Finally, these theoretical values are compared with practical results.
ER  -