Abstract
The purpose of the article is to analyze software and hardware methods of suppression of electroacoustic feedback in radioelectronic systems of audio monitoring and television production. The work shows a numerical analysis of signal methods for compensating positive feedback of radio acoustics, as well as an architectural DSP solution for constructing a notch equalization ruler with auto-tracking multitonal sound suppression based on an ADAU1701 audio processor. Methods: algorithms of digital signal processing, theory of stability of sound-amplifying and sound-picking radio systems, methods of signal radio acoustics, theory and methods of analysis of self-oscillating circuits, vector theory of the sound field. Results: the causes of electroacoustic feedback have been identified; an adaptive algorithm for suppressing electroacoustic feedback has been proposed and investigated; an experiment with the use of an electroacoustic feedback auto-suppression submodule has been analyzed.
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