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Numerical Analysis of Total Harmonic Distortion of a Loudspeaker in a Low-Frequency Range

Japanese expert Yoshinisa studied the total harmonic distortion in nonlinear phenomena of the loudspeaker in a low frequency range caused by nonlinear mechanic resilience, but he ignored the case of nonlinearity of mechanic resilience and magnetic field. The authors' work focuses on finding the total harmonic distortion of the nonlinear motion of the loudspeaker by means of numerical calculation. They obtained the numerical solution through numerical calculation using MATLAB software, and the corresponding curves about the total harmonic distortion versus frequency through spectrum analysis using SPECTRA PLUS software. They also analyzed the influence of nonlinearity of magnetic field on the total harmonic distortion of the loudspeaker, and drew several useful conclusions.

Authors: Zhang , Z.L.; Zong, F.D.
Affiliation: physics, Zhe Jiang Normal University,jinhua, zhejiang, China
AES Convention:117 (October 2004) Paper Number:6244 Import into BibTeX
Subject:Loudspeakers

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