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Conference Paper

Active Compensation of Transducer Nonlinearities

Authors: Klippel, Wolfgang

AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction · Paper 2 · May 2003

Abstract

Nonlinearities inherent in electromechanical and electroacoustical transducers produce signal distortion and limit the maximal amplitude of the output signal. Assessing the large signal performance has been a subject of acoustical research for many years providing nonlinear models and new methods for the measurement of the large signal parameters. The identified model allows prediction and simulation of the nonlinear behavior and direct comparison with measured symptoms. The good agreement between model and reality is the basis for developing novel digital controllers dedicated to transducers that compensate actively for nonlinear distortion by inverse preprocessing of the electrical input signal. This paper gives a summary on the activities in the last 15 years and new challenges of the future.

Details

Published in
AES Conference: 23rd International Conference: Signal Processing in Audio Recording and Reproduction
Paper number
2
Publication date
May 6, 2003
Session subject
Signal Processing in Audio Recording and Reproduction
Affiliation
Klippel GmbH, Dresden, Germany (See document for exact affiliation information.)
Type
Conference Paper