Method and apparatus for feedback suppression

A method for reducing feedback in a hearing aid device, the hearing aid device including an acousto-electric transducer, a signal processing device, a feedback suppression device and an electro-acoustic transducer, which comprises the following steps of:

• ascertaining a first feedback transfer function on a feedback path from the signal processing device via the electro-acoustic transducer, an acoustic signal path from the electro-acoustic transducer to the acousto-electric transducer and via the acousto-electric transducer back to the signal processing device;
• determining a plurality of impulse response parameters in a manner dependent on amplitude absolute values of the first feedback transfer function;
• estimating a second feedback transfer function by means of an adaptive filter wherein coefficients of the adaptive filter are updated in a manner dependent on the impulse response parameters, wherein an adaptation speed of the adaptive filter is formed in dependence on the impulse response parameters;
• and
• applying the adaptive filter to a signal derived from an acoustic input signal of the acousto-electric transducer.