Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity

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

doi:10.1109/ASPAA.1995.482982

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 proceeding › Conference contribution › Academic › peer-review

16 Citations (Scopus)

222 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 language	Undefined
Title of host publication	Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics
Place of Publication	Mohonk Mountain House, New Paltz, New York, USA
Publisher	IEEE
Pages	74-78
Number of pages	5
ISBN (Print)	0-7803-3064-1
DOIs	https://doi.org/10.1109/ASPAA.1995.482982
Publication status	Published - 15 Oct 1995
Event	IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics - New York, USA Duration: 15 Oct 1995 → 18 Oct 1995

Publication series

Name
Publisher	IEEE

Workshop

Workshop	IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics
Period	15/10/95 → 18/10/95
Other	15-18 Oct. 1995

Keywords

IR-17422
METIS-114317

Access to Document

10.1109/ASPAA.1995.482982

00482982

Cite this

@inproceedings{4f5558e5e5f846a6986e0f26a21a19a7,

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",

keywords = "IR-17422, METIS-114317",

author = "H. Schurer and Hans Schurer and Slump, {Cornelis H.} and O.E. Herrmann",

year = "1995",

month = oct,

day = "15",

doi = "10.1109/ASPAA.1995.482982",

language = "Undefined",

isbn = "0-7803-3064-1",

publisher = "IEEE",

pages = "74--78",

booktitle = "Proceedings of the IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics",

address = "United States",

note = "IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics ; Conference date: 15-10-1995 Through 18-10-1995",

}

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, IEEE ASSP Workshop on Applications of Signal Processing to Audio and Acoustics, 15/10/95. https://doi.org/10.1109/ASPAA.1995.482982

Second order Volterra Inverses for Compensation of Loudspeaker Nonlinearity. / Schurer, H.; Schurer, Hans; Slump, Cornelis H. et al.
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 proceeding › Conference contribution › Academic › peer-review

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AU - Schurer, Hans

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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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