Method for adjusting the useful signal in binaural hearing aid systems and hearing aid system

摘要

A method operates a hearing aid system and the hearing aid system has at least two hearing aid devices, between which a signal path is provided, and with at least one signal processing unit, which is provided to process audio signals. In the method the signal processing apparatus filters first audio signals with a filter predetermined for a defined spatial direction, from which a useful signal arrives, so that second audio signals are generated, in which the components of the useful signal in the second audio signals are equalized to a greater degree than in the first audio signals. The second audio signals are then filtered with an adaptive filter, so that third audio signals are generated, in which the components of the useful signal are equalized to an even greater degree than in the second audio signals.

主权项

1. A method for operating a hearing aid system with at least two hearing aid devices, one of the hearing aid devices provided for each ear of a user, the hearing aid devices each having a transducer for receiving an acoustic signal and converting the acoustic signal in each instance to a first audio signal, each of the hearing aid devices having a signal processing unit and a bidirectional exchange of the first audio signals taking place between the signal processing units of the hearing aid devices, the hearing aid system having a signal processing apparatus for processing audio signals and the hearing aid system having a signal connection for transmitting the first audio signal from each hearing aid device to the signal processing apparatus, wherein the signal processing apparatus executing the following steps for equalizing components of a useful signal in received audio signals of the acoustic signal in third audio signals, the useful signal arriving from a defined spatial direction in relation to the hearing aid system:
filtering first audio signals with a predetermined filter predetermined for the defined spatial direction, so that second audio signals are generated, the predetermined filter being configured in such a manner that the components of the useful signal in the second audio signals are equalized to a greater degree than in the first audio signals; and filtering the second audio signals with an adaptive filter, so that the third audio signals are generated, the adaptive filter being configured in such a manner that the components of the useful signal in the third audio signals are equalized to a greater degree than in the second audio signals.