%0 Journal Article %T EFFECTIVENESS INCREASE IN AUDIO EXCHANGE TELECOMMUNICATION SYSTEMS UNDER CONDITIONS OF EXTERNAL ACOUSTIC NOISE BY METHODS OF ADAPTIVE FILTERING %A Kropotov, Y.A. %A Belov, A.A. %A Proskuryakov, A.Y. %K “signal-acoustic noise” ratio, speech signals, telecommunication signals, adaptive filtering, spectral function, acoustic noise %J Bulletin of Bryansk state technical university %D 2019 %N 2019 %P 6 %I Bryansk State Technical University