Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity

H. Schurer, Hans Schurer, Cornelis H. Slump, O.E. Herrmann

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

14 Citations (Scopus)
46 Downloads (Pure)

Abstract

High quality sound reproduction by loudspeakers is increasingly problematic if the dimensions of the loudspeaker decrease. To produce enough power, large diaphragm excursions are needed which give rise to significant distortions especially at very low frequencies. Instead of improving the mechanical construction of the transducer we apply a feedforward nonlinear digital inverse circuit. Results of two 2nd order Volterra compensators show a significant reduction of the second order harmonics, leaving higher order distortions unchanged. The structure of the realization influences the performance considerably. Two realization structures are considered, and the error caused by the differentiators in the output of the compensators are compared. Both algorithms are implemented in real-time on a digital signal processor (DSP) for on-line testing with the transducer
Original languageUndefined
Title of host publicationProceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics
Place of PublicationMohonk Mountain House, New Paltz, New York, USA
PublisherIEEE
Pages74-78
Number of pages5
ISBN (Print)0-7803-3064-1
DOIs
Publication statusPublished - 15 Oct 1995

Publication series

Name
PublisherIEEE

Keywords

  • IR-17422
  • METIS-114317

Cite this

Schurer, H., Schurer, H., Slump, C. H., & Herrmann, O. E. (1995). Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. In Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics (pp. 74-78). Mohonk Mountain House, New Paltz, New York, USA: IEEE. https://doi.org/10.1109/ASPAA.1995.482982
Schurer, H. ; Schurer, Hans ; Slump, Cornelis H. ; Herrmann, O.E. / Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics. Mohonk Mountain House, New Paltz, New York, USA : IEEE, 1995. pp. 74-78
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title = "Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity",
abstract = "High quality sound reproduction by loudspeakers is increasingly problematic if the dimensions of the loudspeaker decrease. To produce enough power, large diaphragm excursions are needed which give rise to significant distortions especially at very low frequencies. Instead of improving the mechanical construction of the transducer we apply a feedforward nonlinear digital inverse circuit. Results of two 2nd order Volterra compensators show a significant reduction of the second order harmonics, leaving higher order distortions unchanged. The structure of the realization influences the performance considerably. Two realization structures are considered, and the error caused by the differentiators in the output of the compensators are compared. Both algorithms are implemented in real-time on a digital signal processor (DSP) for on-line testing with the transducer",
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author = "H. Schurer and Hans Schurer and Slump, {Cornelis H.} and O.E. Herrmann",
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Schurer, H, Schurer, H, Slump, CH & Herrmann, OE 1995, Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. in Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics. IEEE, Mohonk Mountain House, New Paltz, New York, USA, pp. 74-78. https://doi.org/10.1109/ASPAA.1995.482982

Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. / Schurer, H.; Schurer, Hans; Slump, Cornelis H.; Herrmann, O.E.

Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics. Mohonk Mountain House, New Paltz, New York, USA : IEEE, 1995. p. 74-78.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity

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Y1 - 1995/10/15

N2 - High quality sound reproduction by loudspeakers is increasingly problematic if the dimensions of the loudspeaker decrease. To produce enough power, large diaphragm excursions are needed which give rise to significant distortions especially at very low frequencies. Instead of improving the mechanical construction of the transducer we apply a feedforward nonlinear digital inverse circuit. Results of two 2nd order Volterra compensators show a significant reduction of the second order harmonics, leaving higher order distortions unchanged. The structure of the realization influences the performance considerably. Two realization structures are considered, and the error caused by the differentiators in the output of the compensators are compared. Both algorithms are implemented in real-time on a digital signal processor (DSP) for on-line testing with the transducer

AB - High quality sound reproduction by loudspeakers is increasingly problematic if the dimensions of the loudspeaker decrease. To produce enough power, large diaphragm excursions are needed which give rise to significant distortions especially at very low frequencies. Instead of improving the mechanical construction of the transducer we apply a feedforward nonlinear digital inverse circuit. Results of two 2nd order Volterra compensators show a significant reduction of the second order harmonics, leaving higher order distortions unchanged. The structure of the realization influences the performance considerably. Two realization structures are considered, and the error caused by the differentiators in the output of the compensators are compared. Both algorithms are implemented in real-time on a digital signal processor (DSP) for on-line testing with the transducer

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Schurer H, Schurer H, Slump CH, Herrmann OE. Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. In Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics. Mohonk Mountain House, New Paltz, New York, USA: IEEE. 1995. p. 74-78 https://doi.org/10.1109/ASPAA.1995.482982