Method for designing A-weighting filter in sound level meter based on improved whale optimization algorithm

•Identified the key error source in conventionally designed A-weighting filters.•The proposed method focuses on this error source for higher accuracy and simpler optimization.•Improved the conventional whale optimization algorithm for better performance. A-weighting filter is one of the critical com...

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Bibliographic Details

Published in:	Measurement : journal of the International Measurement Confederation Vol. 257; p. 118720
Main Authors:	Wang, Jifan, Lin, Haijun, Lv, Bowen, Deng, Layan, Wang, Lucai, Wu, Shuangshuang
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 15.01.2026
Subjects:	A-weighting filter IIR filter Improved whale optimization algorithm Sound level meter Sound level meter Improved whale optimization algorithm IIR filter A-weighting filter
ISSN:	0263-2241
Online Access:	Get full text
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