Line Arrays with Controllable Directional Characteristics — Theory and Practice

Fincham L, Brown P. Line Arrays with Controllable Directional Characteristics — Theory and Practice. In: AES Convention 125. Audio Engineering Society; 2008. Paper 7535. Available from: https://aes.org/publications/elibrary-page/?id=14687

@inproceedings{Fincham2008_14687,
  author = {Fincham, Laurie and Brown, Peter},
  title = {{Line Arrays with Controllable Directional Characteristics — Theory and Practice}},
  booktitle = {AES Convention 125},
  note = {Paper 7535},
  year = {2008},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=14687}
}

TY  - CPAPER
TI  - Line Arrays with Controllable Directional Characteristics — Theory and Practice
AU  - Fincham, Laurie
AU  - Brown, Peter
T2  - AES Convention 125
M1  - Paper 7535
PY  - 2008
DA  - 2008/10/06
UR  - https://aes.org/publications/elibrary-page/?id=14687
PB  - Audio Engineering Society
LA  - en
AB  - A so-called arc line array is capable of providing directivity control. Applying simple amplitude shading can, in theory, provide good off-axis lobe suppression and constant directivity over a frequency range determined at low-frequencies by line length and at high-frequencies by driver spacing. Array transducer design present additional challenges – the dual requirements of close spacing, for accurate high-frequency control, and a large effective radiating area, for good bass output, are incompatible with the use of multiple full-range drivers. A novel drive unit layout is proposed and theoretical and practical design criteria are presented for a two-way line with controllable directivity and virtual elimination of spatial aliasing. The PC-based array controller permits real-time changes in beam parameters for multiple overlaid beams.
ER  -