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L. Fincham, and P. Brown, "Line Arrays with Controllable Directional Characteristics — Theory and Practice," Paper 7535, (2008 October.). doi: L. Fincham, and P. Brown, "Line Arrays with Controllable Directional Characteristics — Theory and Practice," Paper 7535, (2008 October.). doi:
Abstract: 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.

@article{fincham2008line,
author={fincham, laurie and brown, peter},
journal={journal of the audio engineering society},
title={line arrays with controllable directional characteristics — theory and practice},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},} @article{fincham2008line,
author={fincham, laurie and brown, peter},
journal={journal of the audio engineering society},
title={line arrays with controllable directional characteristics — theory and practice},
year={2008},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={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.},}

TY - paper
TI - Line Arrays with Controllable Directional Characteristics — Theory and Practice
SP - EP -
AU - Fincham, Laurie
AU - Brown, Peter
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008 TY - paper
TI - Line Arrays with Controllable Directional Characteristics — Theory and Practice
SP - EP -
AU - Fincham, Laurie
AU - Brown, Peter
PY - 2008
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2008
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.