Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Adaptive compensation for interference inverse acoustic path in the process of exploitation conference systems K.V. Kondratiev O.V. Nepomnyastchy A.F. Shishkin V.N. SERGEEVICh Outline of the current state of the problem of suppression of acoustic feedback (AFS). On the basis of the unsatisfactory results obtained on the basis of theoretical studies of existing methods and practical testing of software and hardware systems suppression AFS can declare the absence, to date, allowing the system to fully compensate or suppress interference AFS, with no significant adverse changes in the output signal. To solve the aforesaid proposed to use the method of acoustic echo cancellation, which later leads to a strengthening of the next self-excitation of the system. To implement this method, it is necessary to form the interference pattern on the input signal before it goes to an echo sensor receiver. This paper proposes an algorithm for fully predict future interference and compensate for it without affecting the original, the desired signal. If the dynamic response is voiced medium size sufficient space 0.1…0.2 seconds of silence, which would make adaptation at the time of signal, for example at the beginning of a call, or when there is a pause between words. In the real world you need, when amplifying path clean, achieved cut-off filters in the amplifier path loudspeaker system. It is also a method that allows for the setting of idle discussion in microphone blocks in real time, which is certainly an important factor, since at the moment of switching the microphone in his memory will already contain the relevant coefficients of the adaptive filter to compensate for the AFS. Keywords: acoustic feedback, filter, cross-correlation function, adaptation, public address system, the impulse transient response. Contacts: E-mail: Kondratyev-37@mail.ru Pp. 53-59.