Theoretical and Experimental Comparison of Three Methods for Compensation of Electrodynamic Transducer Nonlinearity

Schurer H, Slump CH, Herrmann OE. Theoretical and Experimental Comparison of Three Methods for Compensation of Electrodynamic Transducer Nonlinearity. J Audio Eng Soc. 1998;46(9):723-740. Available from: https://aes.org/publications/elibrary-page/?id=12134

@article{Schurer1998_12134,
  author = {Schurer, Hans and Slump, Cornelis H. and Herrmann, Otto E.},
  title = {{Theoretical and Experimental Comparison of Three Methods for Compensation of Electrodynamic Transducer Nonlinearity}},
  journal = {Journal of the Audio Engineering Society},
  volume = {46},
  number = {9},
  pages = {723--740},
  year = {1998},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12134}
}

TY  - JOUR
TI  - Theoretical and Experimental Comparison of Three Methods for Compensation of Electrodynamic Transducer Nonlinearity
AU  - Schurer, Hans
AU  - Slump, Cornelis H.
AU  - Herrmann, Otto E.
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 46
IS  - 9
SP  - 723
EP  - 740
PY  - 1998
DA  - 1998/09/06
UR  - https://aes.org/publications/elibrary-page/?id=12134
PB  - Audio Engineering Society
LA  - en
AB  - Based on a simplified nonlinear lumped-element model of an electrodynamic loudspeaker, nonlinear compensators are derived, simulated, and implemented on a digital signal processor (DSP). The model comprises three major nonlinearities: voice-coil excursion dependent force factor, (suspension) stiffness, and self-inductance. A Volterra series expansion is used to estimate nonlinear parameters from distortion measurements. The first compensation method utilizes the second-order s-domain kernel of this expansion to synthesize a second-order compensator. The other two methods employ extended mirror filter and state-space techniques, respectively. All three approaches are compared with respect to needed dynamic elements, computational complexity, robustness, and effectiveness for the case of a low-frequency direct radiator in a closed cabinet.
ER  -