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Linearization Ability Evaluation for Loudspeaker Systems Using Dynamic Distortion Measurement

Shoichi KITAGAWA, Yoshinobu KAJIKAWA

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Summary :

In this letter, the compensation ability of nonlinear distortions for loudspeaker systems is demonstrated using dynamic distortion measurement. Two linearization methods using a Volterra filter and a Mirror filter are compared. The conventional evaluation utilizes swept multi-sinusoidal waves. However, it is unsatisfactory because wideband signals such as those of music and voices are usually applied to loudspeaker systems. Hence, the authours use dynamic distortion measurement employing a white noise. Experimental results show that the two linearization methods can effectively reduce nonlinear distortions for wideband signals.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.2 pp.813-816
Publication Date
2011/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E94.A.813
Type of Manuscript
LETTER
Category
Engineering Acoustics

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