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Modeling and Compensation of Nonlinear Distortion in Horn Loudspeakers

Horn loudspeakers suffer from production of high acoustic distortions. Based on an ideal physical model, an equivalent lumped parameter circuit is determined for a horn-loaded compression driver. From the nonlinear differential equation of this circuit, a compensation algorithm is implemented on a DSP for reducing nonlinear distortion caused by the adiabatic behavior of air. Test results are given.

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