W. Klippel, "Nonlinear wave propagation in horns and ducts,", W. Klippel, "Compensation for nonlinear distortion of horn loudspeakers by digital signal processing,", D. Bard, "Horn loudspeakers nonlinearity comparison and linearization using Volterra series," in, D. Bard, M. D. Nobile, and M. Rossi, "Compensation of nonlinearities of horn loudspeakers," in, M. J. Reed and M. O. Hawksford, "Non-linear error correction of horn transducers using a Volterra filter," in, A. Novak, B. Maillou, P. Lotton, and L. Simon, "Nonparametric identification of nonlinear systems in series,", E. Czerwinski, A. Voishvillo, S. Alexandrov, and A. Terekhov, "Propagation distortion in sound systems: Can we avoid it?,", M. F. Hamilton and C. L. Morfey, "Model Equations," in, K. R. Holland and C. L. Morfey, "A model of nonlinear wave propagation in horns,", C. Cooper and J. S. Abel, "Digital simulation of Brassiness and amplitude-dependent propagation speed in wind instruments," in, H. Schurer, A. P. Berkhoff, C. H. Slump, and O. E. Herrmann, "Modeling and compensation of nonlinear distortion in horn loudspeakers,", A. Voishvillo, "Comparative analysis of nonlinear distortion in compression drivers and horns," in, A. Voishvillo, "Nonlinearity in horn drivers--where the distortion comes from?," in, D. Liu and R. C. Waag, "Correction of ultrasonic wavefront distortion using backpropagation and a reference waveform method for time shift compensation,", M. Tanter, J.-L. Thomas, F. Coulouvrat, and M. Fink, "Breaking of time reversal invariance in nonlinear acoustics,", K. B. Cunningham, M. F. Hamilton, A. P. Brysev, and L. M. Krutyansky, "Time-reversed sound beams of finite amplitude,", S. S. Payal and V. J. Mathews, "Equalization of nonlinear systems modeled using the Burgers equation," in, D. T. Blackstock, "Generalized Burgers equation for plane waves,", S. MacNamara and G. Strang, "Operator splitting," in, J. H. Ginsberg and M. F. Hamilton, "Computational methods," in, W. L. Miranker, "A well posed problem for the backward heat equation,", K. A. Ames and L. E. Payne, "Continuous dependence on modeling for some well-posed perturbations of the backward heat equation,", C. L. Fu, X. T. Xiong, and Z. Qian, "Fourier regularization for a backward heat equation,", A. Carasso, "Determining surface temperatures from interior observations,", L. Elden, "Hyperbolic approximations for a Cauchy problem for the heat equation,", T. I. Seidman and L. Elden, "An 'optimal filtering' method for the sideways heat equation,", S. Osher and L. I. Rudin, "Feature-oriented image enhancement using shock filters,", L. Xu, X. Tao, and J. Jia, "Inverse Kernels for fast spatial deconvolution," in, R. Gorenflo and F. Mainardi, "Fractional calculus," in. KCS can reduce the nonlinear distortion produced by the transducer for any arbitrary music. Klippel GmbH Mendelssohnallee 30 01309 Dresden/Germany Phone: 49.351.5019390 Fax: 49.351.50193910 info(at)klippel(dot)dewww.klippel.net.cn, 3-Day Lecture "Sound Quality of Audio Systems", Linear and nonlinear distortions are reduced, Constant transducer behavior over lifetime, Based on a nonlinear physical speaker model.

We use cookies to ensure that we give you the best experience on our website. Utah, Salt Lake City, UT, USA, 2019. Total harmonic distortion (THD, THD+N) Nth-order component versus frequency and amplitude Hi-2 distortion (weighted low order harmonics) Equivalent input distortion; Intermodulation Distortion. Nonlinear Distortion. A. Il'inskii, and E. A. Zabolotskaya, "Dispersion," in. These results represented a two-fold improvement over a model-based method available in the literature.

KCS uses a nonlinear filter structure, which is a mirror image of the determined transducer model.The harmonic and intermodulation distortions synthesized in the mirror filter are subtracted from the input signal before it is fed to the transducer. 6, JUNE 2019 Equalization of Nonlinear Propagation Distortion in Cylindrical Waveguides Shreyas Srikanth Payal, Member, IEEE, V John Mathews, Fellow, IEEE, Douglas J. Button, Ajay Iyer, Russell H. Lambert, Member, IEEE, Jeffrey Hutchings, and Luis A. Azpicueta-Ruiz, Member, IEEE Abstract—A model-based … thesis, Dept.
Comput. S. S. Payal, "Equalization of distortions in nonlinear audio systems," Ph.D. dissertation, Dept. Available: http://www.aes.org/publications/standards/search.cfm?docID=1, 2012. Nonlinear Distortions Nonlinear distortions result in an amplifier from nonlinear curve characteristics of the parts. Linear distortions Any frequency spectrum that passes through a linear system can undergo only linear distortions. In this section, we discuss specifically virtual electric guitar distortion, and mention other instances of audible nonlinearity in stringed musical instruments. A model-based pre-equalizer for propagation-induced distortion of acoustic waveforms in an air-filled waveguide at high sound pressure levels is developed. Communication hardware, interfaces and storage. The pre-equalizer digitally propagates the waveform backwards using a sign-inverted propagation model. Check if you have access through your login credentials or your institution to get full access on this article. In practice these distortions may emerge by a change in signal amplitude and/or a change in signal phase for each frequency component. Copyright © 2020 ACM, Inc. IEEE/ACM Transactions on Audio, Speech and Language Processing, W. Lauterborn, T. Kurz, and I. Akhatov, "Nonlinear acoustics in fluids," in, M. F. Hamilton, Y. So now we know that linear means undistorted, nonlinear means distorted. This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited.

KCS uses a nonlinear filter structure, which is a mirror image of the determined transducer model.

https://dl.acm.org/doi/pdf/10.1109/TASLP.2019.2908279. Elect. "AES-1ID-2012: AES information document for acoustics--plane wave tubes--design and practice," Accessed: Mar.

You are here: Home / Know-how / Measurements / Nonlinear Distortion. The funfair mirror is ‘nonlinear’, causing distortion. Nonlinear and time-variant transducer parameters will cause nonlinear and linear distortion in the transducer’s output signal. Experimental evaluations employing sinusoidal and multitone stimuli demonstrated approximately a two-fold reduction in the intermodulation distortion and a four-fold reduction in total harmonic distortion at low frequencies. Purchase, subscribe or recommend this article to your librarian. To manage your alert preferences, click on the button below. If the original signal no new frequencies are in addition-mixed, linear distortions develop. 20, 2016. Eng., Univ. M. K. Ishteva, "Properties and applications of the Caputo fractional operator," M.Sc.

Consequently the distortions of linear systems are divided into two categories: amplitude and phase distortions. Diagnostics of Audio SystemsSpeaker Control, Klippel GmbH Mendelssohnallee 30 01309 Dresden/Germany Phone: 49.351.5019390 Fax: 49.351.50193910 info(at)klippel(dot)dewww.klippel.net.cn, 3-Day Lecture "Sound Quality of Audio Systems", DC Displacement – Dynamic Offset the Voice Coil, Nth-order component versus frequency and amplitude, Hi-2 distortion (weighted low order harmonics), Nth-order difference-tone and summed-tone intermodulation, Total intermodulation distortion (absolute and relative), Total distortion in a reproduced audio signal, Distortion generated by force factor Bl(x), Crest-factor versus voice coil displacement, Absolute envelope of modulated noise MOD, Relative envelope of modulated noise RMOD, Peak value of deterministic distortion DET, Crest factor of deterministic distortion CREST, Tone burst measurement according to ANSI CEA-2010. F. M. Pestorius, "Propagation of plane acoustic noise of finite amplitude," Technical Note ARL-TR-73-23, Applied Research Labs, University of Texas at Austin, Aug. 1973.

R. Courant, K. Friedrichs, and H. Lewy, "On the partial difference equations of mathematical physics,", A. Carini, V. J. Mathews, and G. L. Sicuranza, "Equalization of recursive polynomial systems,", B. O. Enflo and O. V. Rudenko, "To the theory of generalized Burgers' equations,", Equalization of Nonlinear Propagation Distortion in Cylindrical Waveguides, https://doi.org/10.1109/TASLP.2019.2908279, All Holdings within the ACM Digital Library.
The output of the pre-equalizer is fed to the waveguide. The funfair mirror is bent, which causes the distortion of the image.


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