Compensation for Nonlinear Distortion of Horn Loudspeakers by Digital Signal Processing

Klippel W. Compensation for Nonlinear Distortion of Horn Loudspeakers by Digital Signal Processing. J Audio Eng Soc. 1996;44(11):964-972. Available from: https://aes.org/publications/elibrary-page/?id=7878

@article{Klippel1996_7878,
  author = {Klippel, Wolfgang},
  title = {{Compensation for Nonlinear Distortion of Horn Loudspeakers by Digital Signal Processing}},
  journal = {Journal of the Audio Engineering Society},
  volume = {44},
  number = {11},
  pages = {964--972},
  year = {1996},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=7878}
}

TY  - JOUR
TI  - Compensation for Nonlinear Distortion of Horn Loudspeakers by Digital Signal Processing
AU  - Klippel, Wolfgang
T2  - Journal of the Audio Engineering Society
J2  - J. Audio Eng. Soc.
VL  - 44
IS  - 11
SP  - 964
EP  - 972
PY  - 1996
DA  - 1996/11/06
UR  - https://aes.org/publications/elibrary-page/?id=7878
PB  - Audio Engineering Society
LA  - en
AB  - Nonlinear distortion of horn loudspeakers can be compensated by prefiltering the electrical input signal inversely. A new filter architecture is derived from the results of nonlinear loudspeaker modeling using static nonlinear and dynamic linear subsystems. This special structure requires less computational effort and less memory than other generic architectures and allows complete compensation for the modeled nonlinear mechanisms. In practice, simplified versions of this filter can be implemented to compensate for dominant nonlinearities only. System identification performed on a particular horn loudspeaker provides valuable information about the dominant nonlinearity and allows adjustment of the free filter parameters. The implementation of an adequate filter structure for a professional loudspeaker in a DSP56000 is discussed, and results of the distortion reduction are presented.
ER  -