New Engineering Method for Design and Optimization of Phasing Plug and Dome-Shaped Compression Chamber of Horn Drivers
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A. Voishvillo, "New Engineering Method for Design and Optimization of Phasing Plug and Dome-Shaped Compression Chamber of Horn Drivers," Engineering Brief 517, (2019 March.). doi:
A. Voishvillo, "New Engineering Method for Design and Optimization of Phasing Plug and Dome-Shaped Compression Chamber of Horn Drivers," Engineering Brief 517, (2019 March.). doi:
Abstract: In this work an accurate analytical solution is found for the sound field in a dome-shaped compression chamber. This simplifies the design and optimization of the compression chamber’s annular exits to suppress high-frequency air resonances. In earlier works by other authors, the solution is also found in spherical coordinates. For low-curvature chambers, an approximation in the form of Bessel function summation was used. For high-curvature compression chambers an analytical approximation did not work and FEA had to be used. The new proposed method is based on Mehler-Dirichlet analytical integral presentation of Legendre functions. This approach handles high-curvature dome chambers and does not require using numerical methods. An evaluation of this new method’s applicability to chambers with various different curvatures was implemented.
@article{voishvillo2019new,
author={voishvillo, alexander},
journal={journal of the audio engineering society},
title={new engineering method for design and optimization of phasing plug and dome-shaped compression chamber of horn drivers},
year={2019},
volume={},
number={},
pages={},
doi={},
month={march},}
@article{voishvillo2019new,
author={voishvillo, alexander},
journal={journal of the audio engineering society},
title={new engineering method for design and optimization of phasing plug and dome-shaped compression chamber of horn drivers},
year={2019},
volume={},
number={},
pages={},
doi={},
month={march},
abstract={in this work an accurate analytical solution is found for the sound field in a dome-shaped compression chamber. this simplifies the design and optimization of the compression chamber’s annular exits to suppress high-frequency air resonances. in earlier works by other authors, the solution is also found in spherical coordinates. for low-curvature chambers, an approximation in the form of bessel function summation was used. for high-curvature compression chambers an analytical approximation did not work and fea had to be used. the new proposed method is based on mehler-dirichlet analytical integral presentation of legendre functions. this approach handles high-curvature dome chambers and does not require using numerical methods. an evaluation of this new method’s applicability to chambers with various different curvatures was implemented.},}
TY - paper
TI - New Engineering Method for Design and Optimization of Phasing Plug and Dome-Shaped Compression Chamber of Horn Drivers
SP -
EP -
AU - Voishvillo, Alexander
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - March 2019
TY - paper
TI - New Engineering Method for Design and Optimization of Phasing Plug and Dome-Shaped Compression Chamber of Horn Drivers
SP -
EP -
AU - Voishvillo, Alexander
PY - 2019
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - March 2019
AB - In this work an accurate analytical solution is found for the sound field in a dome-shaped compression chamber. This simplifies the design and optimization of the compression chamber’s annular exits to suppress high-frequency air resonances. In earlier works by other authors, the solution is also found in spherical coordinates. For low-curvature chambers, an approximation in the form of Bessel function summation was used. For high-curvature compression chambers an analytical approximation did not work and FEA had to be used. The new proposed method is based on Mehler-Dirichlet analytical integral presentation of Legendre functions. This approach handles high-curvature dome chambers and does not require using numerical methods. An evaluation of this new method’s applicability to chambers with various different curvatures was implemented.
In this work an accurate analytical solution is found for the sound field in a dome-shaped compression chamber. This simplifies the design and optimization of the compression chamber’s annular exits to suppress high-frequency air resonances. In earlier works by other authors, the solution is also found in spherical coordinates. For low-curvature chambers, an approximation in the form of Bessel function summation was used. For high-curvature compression chambers an analytical approximation did not work and FEA had to be used. The new proposed method is based on Mehler-Dirichlet analytical integral presentation of Legendre functions. This approach handles high-curvature dome chambers and does not require using numerical methods. An evaluation of this new method’s applicability to chambers with various different curvatures was implemented.
Author:
Voishvillo, Alexander
Affiliation:
JBL/Harman Professional Solutions, Northridge, CA, USA
AES Convention:
146 (March 2019)eBrief:517
Publication Date:
March 10, 2019Import into BibTeX
Subject:
Loudspeakers and Assistive Technologies
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=20375
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