TY JOUR TI Testing a hybrid noise reduction technique effectiveness in a speech signal for a video conferencing system KW video conferencing KW speech signal KW noise reduction KW signal quality KW spectrum KW filtering coefficient KW frequency band KW Bark scale KW recurrent neural networks JO Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics AU Belov, S.. AU Katunin, S.. AU Kuchin, I.. AU Rudenko, M.. PY 2025 IS 2025 PB Astrakhan State Technical University