Vorrichtung und Verfahren zum Berechnen von Filterkoeffizienten zur Echounterdrückung

: Küch, F.; Kallinger, M.; Faller, C.; Favrot, A.

Abstract
An embodiment of an apparatus (200) for computing filter coefficients for an adaptive filter (210) for filtering a microphone signal so as to suppress an echo due to a loudspeaker signal includes extraction means (250) for extracting a stationary component signal or a non-stationary component signal from the loudspeaker signal or from a signal derived from the loudspeaker signal, and computing means (270) for computing the filter coefficients for the adaptive filter (210) on the basis of the extracted stationary component signal or the extracted non-stationary component signal.