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Using digital signal processing techniques is an effective and low-cost way to compensate for nonlinear distortion of loudspeakers induced by the motor and suspension. Research shows that the nonlinear viscoelasticity of the suspension is also an important factor that distorts the acoustic output, but it is ignored in existing compensator designs. Therefore, in this paper, a new compensator that considers the nonlinear viscoelasticity of the suspension is proposed to reduce the nonlinear distortion. Experimental results demonstrate that the proposed compensator can significantly reduce the total harmonic distortion and intermodulation distortion in sound pressure while negligibly affecting the output sound pressure level.
Author (s): Tian, Xing; Liu, Wei; Feng, Xuelei; Shen, Yong
Affiliation:
Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China
(See document for exact affiliation information.)
Publication Date:
2021-03-06
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Permalink: https://aes2.org/publications/elibrary-page/?id=21028
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Tian, Xing; Liu, Wei; Feng, Xuelei; Shen, Yong; 2021; Compensation of Nonlinear Distortion in Loudspeakers Considering Nonlinear Viscoelasticity of the Suspension [PDF]; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China; Paper ; Available from: https://aes2.org/publications/elibrary-page/?id=21028
Tian, Xing; Liu, Wei; Feng, Xuelei; Shen, Yong; Compensation of Nonlinear Distortion in Loudspeakers Considering Nonlinear Viscoelasticity of the Suspension [PDF]; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing, China; Shenzhen Research Institute of Nanjing University, Shenzhen, China; Paper ; 2021 Available: https://aes2.org/publications/elibrary-page/?id=21028
@article{tian2021compensation,
author={tian xing and liu wei and feng xuelei and shen yong},
journal={journal of the audio engineering society},
title={compensation of nonlinear distortion in loudspeakers considering nonlinear viscoelasticity of the suspension},
year={2021},
volume={69},
issue={3},
pages={204-210},
month={march},}