Archives of Acoustics, 33, 4(S), pp. 33–37, 2008

The Measurement of Nonlinear Distortion Using Broadband Noise



The method of measurement of nonlinear distortions in loudspeakers using digital filters
has been presented. Using MATLAB software packet developed by MathWorks it is possible
to design necessary filters. The Simulink packet has been used for simulation of the measuring
process. The level of the residual noise caused by finite slope of the filters has been determined.
The static polynomial function has been applied for both: simulation and the measured objects.
Keywords: broadband noise, digital filter, nonlinear distortion
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