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Express Paper Open Access

Investigation of the influence of noise signal characteristics on the efficiency of the ANC system for causal and non-causal systems.

Authors: Pakhomov, Mikhail; Jang, Seyeong; Park, Joowon; Kim, Donghwan; Yang, Dongmin; Kim, Sangjun; Gusev, Mikhail; Skripnikov, Fedor; Tolokonnikov, Ivan

AES Convention 155 · Paper 121 · October 2023

Abstract

Currently, noise suppression systems based on the FxLMS algorithm are widely used. The efficiency of these systems depends on several known characteristics, with causality being one of the main ones. If the noise signal reaches the microphone (or ear) before the compensating signal, theoretically, the system's efficiency should be zero. The aim of this study is to determine the relationship between the characteristics of the noise signal and the effectiveness of ANC systems in the case of causal and non-causal systems. Is it possible to achieve stable noise suppression in the case of a non-causal system, and what factors determine the magnitude of suppression?

Details

Published in
AES Convention 155
AES Convention
155
Paper number
121
Publication date
October 6, 2023
Session subject
Signal Processing
Affiliation
SPb Audio Lab Bulgaria; Hyundai Mobis; Hyundai Mobis; Hyundai Mobis; Hyundai Mobis; Hyundai Mobis; Hyundai Mobis (See document for exact affiliation information.)
Type
Express Paper