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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Veröffentlicht in:	Measurement : journal of the International Measurement Confederation Jg. 257; S. 118720
Hauptverfasser:	Wang, Jifan, Lin, Haijun, Lv, Bowen, Deng, Layan, Wang, Lucai, Wu, Shuangshuang
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Elsevier Ltd 15.01.2026
Schlagworte:	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-Zugang:	Volltext
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