A model of non-linear wave propagation in horns
A model of non-linear wave propagation in horns
A model of the propagation of sound at finite levels within acoustic horns is proposed. The model is based on finite exponential elements, within which the sound field is expressible in closed analytic form. The linearly predicted sound field is corrected for nonlinear distortion at the end of each element. In order to model the dispersive standing-wave field present in the flare of many practical horn designs, the model predicts the input waveform required at the throat of a horn to give a desired waveform as output at the mouth. Comparisons between measurements of the harmonic distortion produced by loudspeaker horns and the model predictions are presented. It is concluded that the model can predict the degree of nonlinear waveform distortion associated with the propagation of large-amplitude waves in loudspeaker horns.
non-linear acoustics, horn, waves
569-580
Holland, Keith
90dd842b-e3c8-45bb-865e-3e7da77ec703
Morfey, Christopher
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
July 1996
Holland, Keith
90dd842b-e3c8-45bb-865e-3e7da77ec703
Morfey, Christopher
d5f9a8d0-7d8a-4915-a522-bf49dee111f2
Holland, Keith and Morfey, Christopher
(1996)
A model of non-linear wave propagation in horns.
Journal of the Audio Engineering Society, 44 (7/8), .
Abstract
A model of the propagation of sound at finite levels within acoustic horns is proposed. The model is based on finite exponential elements, within which the sound field is expressible in closed analytic form. The linearly predicted sound field is corrected for nonlinear distortion at the end of each element. In order to model the dispersive standing-wave field present in the flare of many practical horn designs, the model predicts the input waveform required at the throat of a horn to give a desired waveform as output at the mouth. Comparisons between measurements of the harmonic distortion produced by loudspeaker horns and the model predictions are presented. It is concluded that the model can predict the degree of nonlinear waveform distortion associated with the propagation of large-amplitude waves in loudspeaker horns.
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Published date: July 1996
Keywords:
non-linear acoustics, horn, waves
Identifiers
Local EPrints ID: 426253
URI: http://eprints.soton.ac.uk/id/eprint/426253
ISSN: 1549-4950
PURE UUID: 003d10cb-12ad-4588-90eb-cab01a78befe
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Date deposited: 20 Nov 2018 17:30
Last modified: 22 Feb 2023 23:59
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Contributors
Author:
Keith Holland
Author:
Christopher Morfey
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