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To obtain high loudness, with good bass extension, while keeping distortion low, and ensuring mechanical protection, the motion of the loudspeaker diaphragm needs to be controlled accurately. Actual solutions for nonlinear control of loudspeakers are complex and difficult to implement and tune. They are limited in accuracy due to physical models that do not completely capture the complexity of the loudspeaker. Furthermore, physical model parameters are difficult to estimate. We present here a novel approach that uses a Neural Network to directly map the diaphragm displacement to the input voltage, allowing us to “invert” the loudspeaker. This technique allows control and linearization of the loudspeaker without theoretical assumptions. It is also simpler to implement.
Author (s): Brunet, Pascal M.; Li, Yuan; Kubota, Glenn S.; Mariajohn, Aaquila
Affiliation:
Samsung Research America, Valencia, CA, USA
(See document for exact affiliation information.)
AES Convention: 151
Paper Number:10535
Publication Date:
2021-10-06
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Session subject:
Transducers
Permalink: https://aes2.org/publications/elibrary-page/?id=21499
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Brunet, Pascal M.; Li, Yuan; Kubota, Glenn S.; Mariajohn, Aaquila; 2021; Application of AI techniques for Nonlinear control of loudspeakers [PDF]; Samsung Research America, Valencia, CA, USA; Paper 10535; Available from: https://aes2.org/publications/elibrary-page/?id=21499
Brunet, Pascal M.; Li, Yuan; Kubota, Glenn S.; Mariajohn, Aaquila; Application of AI techniques for Nonlinear control of loudspeakers [PDF]; Samsung Research America, Valencia, CA, USA; Paper 10535; 2021 Available: https://aes2.org/publications/elibrary-page/?id=21499
@article{brunet2021application,
author={brunet pascal m. and li yuan and kubota glenn s. and mariajohn aaquila},
journal={journal of the audio engineering society},
title={application of ai techniques for nonlinear control of loudspeakers},
year={2021},
number={10535},
month={october},}