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The directivity of current public address systems can be ensured in mid and high audio frequencies, using arrays and horns. Low frequencies however are often omni-directional. The cardioid subwoofer is introducing itself but has some drawbacks limiting the maximum sound pressure level achievable. As an alternative, the end-fire line array is considered a directive bass system. Previous research already done on end-fire arrays could not rely on our current digital signal processing techniques` potentials since non-existing at the time. Using a digitally processed end-fire array, the possibilities and limitations of these tapered end-fire arrays were examined to create a constant directivity end-fire array with a usable frequency range from 20Hz to 200Hz.
Author (s): Verbinnen, Filip;
Affiliation:
ISVR; University of Southampton
(See document for exact affiliation information.)
AES Convention: 120
Paper Number:6785
Publication Date:
2006-05-06
Session subject:
Loudspeakers and Sound Reinforcement
DOI:
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Verbinnen, Filip; 2006; Constant Directivity End-fire Arrays for Public Address Systems [PDF]; ISVR; University of Southampton; Paper 6785; Available from: https://aes.org/publications/elibrary-page/?id=13589
Verbinnen, Filip; Constant Directivity End-fire Arrays for Public Address Systems [PDF]; ISVR; University of Southampton; Paper 6785; 2006 Available: https://aes.org/publications/elibrary-page/?id=13589
@inproceedings{Verbinnen2006constant,
title={{Constant Directivity End-fire Arrays for Public Address Systems}},
author={Verbinnen, Filip},
year={2006},
month={may},
booktitle={Journal of the Audio Engineering Society},
publisher={Paper 6785; AES Convention 120; May 2006},
number={6785},
organization={AES},
}
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