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The velocity profiles of rigid pistons, supported radiators, clamped radiators, Gaussian radiators, and real loudspeaker drivers can be approximated using only a few terms of their Zernike expansions. The computed profile allows for the extrapolation of far-field pressure data, including off-axis behavior without requiring the use of anechoic rooms. The authors explore a method to perform forward and inverse sound pressure computations for circular radiators with nonuniform velocity profiles. Acoustic parameters of a harmonically excited resilient, flat, circular loudspeaker in an infinite baffle can thus be computed.
Author (s): Aarts, Ronald M.; Janssen, Augustus J. E. M.
Affiliation:
Philips Research Laboratories, Eindhoven, The Netherlands; Eindhoven University of Technology, Department of Electrical Engineering, Eindhoven, The Netherlands
(See document for exact affiliation information.)
Publication Date:
2009-12-06
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Permalink: https://aes2.org/publications/elibrary-page/?id=15233
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Aarts, Ronald M.; Janssen, Augustus J. E. M.; 2009; Estimating the Velocity Profile and Acoustical Quantities of a Harmonically Vibrating Loudspeaker Membrane from On-Axis Pressure Data [PDF]; Philips Research Laboratories, Eindhoven, The Netherlands; Eindhoven University of Technology, Department of Electrical Engineering, Eindhoven, The Netherlands; Paper ; Available from: https://aes2.org/publications/elibrary-page/?id=15233
Aarts, Ronald M.; Janssen, Augustus J. E. M.; Estimating the Velocity Profile and Acoustical Quantities of a Harmonically Vibrating Loudspeaker Membrane from On-Axis Pressure Data [PDF]; Philips Research Laboratories, Eindhoven, The Netherlands; Eindhoven University of Technology, Department of Electrical Engineering, Eindhoven, The Netherlands; Paper ; 2009 Available: https://aes2.org/publications/elibrary-page/?id=15233
@article{aarts2009estimating,
author={aarts ronald m. and janssen augustus j. e. m.},
journal={journal of the audio engineering society},
title={estimating the velocity profile and acoustical quantities of a harmonically vibrating loudspeaker membrane from on-axis pressure data},
year={2009},
volume={57},
issue={12},
pages={1004-1015},
month={december},}
TY – paper
TI – Estimating the Velocity Profile and Acoustical Quantities of a Harmonically Vibrating Loudspeaker Membrane from On-Axis Pressure Data
SP – 1004 EP – 1015
AU – Aarts, Ronald M.
AU – Janssen, Augustus J. E. M.
PY – 2009
JO – Journal of the Audio Engineering Society
VO – 57
IS – 12
Y1 – December 2009