METHOD FOR SIGNAL PROCESSING IN A BINAURAL HEARING DEVICE AND BINAURAL HEARING DEVICE

摘要

A method performs signal processing in a binaural hearing device that has first and second hearing aids with first and second microphones producing first and second signals and with first and second sound generators. The first and second signals ascertain a direction of a main sound source. A deviation in the direction from a frontal direction prompts the hearing aid that is closer to the main sound source to be defined as the local hearing aid and the hearing aid that is more remote from the main sound source to be a remote hearing aid. The local hearing aid, in one frequency band, filters the first signal using an angle-dependent first filter factor, and thus produces a first filtered signal. The first signal, the second signal and/or the direction of the main sound source is used for determining an adaptation coefficient, a first adapted signal and a local directional characteristic.

主权项

1. A method for signal processing in a binaural hearing device having a first hearing aid and a second hearing aid, the first hearing aid having a first microphone for producing a first signal and a first sound generator, the second hearing aid having a second microphone for producing a second signal and a second sound generator, which comprises the steps of:
taking the first signal and the second signal as a basis for at least approximately ascertaining a direction of a main sound source, a deviation in the direction of the main sound source from a frontal direction of the binaural hearing device prompting the hearing aid that is closer to the main sound source in each case to be defined as a local hearing aid and the hearing aid that is more remote from the main sound source to be defined as a remote hearing aid; filtering one of the first signal and the second signal in the local hearing aid, at least in one frequency band, using at least one angle-dependent first filter factor, thus producing a first filtered signal; taking at least one of the first signal, the second signal or the direction of the main sound source as a basis for determining an adaptation coefficient; producing a first adapted signal from one of the first and second signals and the first filtered signal on a basis of the adaptation coefficient; and determining a local directional characteristic of a reproduction signal that is to be output by the sound generator of the local hearing aid from the first adapted signal and one of the first and second signals.