Patent ID: 8588430

Claim:
A method for controlling an adaptation of a behavior of an audio device to a current acoustic environmental condition, the method comprising: monitoring an audio output signal being provided to an acoustic output device of the audio device for outputting an acoustic output signal, measuring an audio input signal being provided by an acoustic input device of the audio device, wherein the audio input signal is indicative for a feedback portion of the acoustic output signal and for the current acoustic environmental condition, receiving the audio signal by an adaptive filter, providing an estimated feedback signal from the adaptive filter, determining a residual signal as a difference between the audio input signal and the estimated feedback signal, performing a time-to-frequency transformation on the estimated feedback signal and on the residual signal to generate the respective time-to-frequency transformation output signals and, using the time-to-frequency transformation output signals to analyze the feedback reduction performance of the adaptive filter by comparing the power of the time-to-frequency transformation output signals for certain frequency bins, determining a relation between the audio output signal and the audio input signal from the analyzed feedback reduction performance of the adaptive filter, and adapting the behavior of the audio device based on the determined relation.