Method for operating a hearing device, and hearing device
A hearing aid has at least two input transducers and at least one output transducer. The input transducers generate an input signal from a sound signal from the surroundings. At least two directional signals with different directional characteristics are formed from the input signals and the directional signals are examined for the presence of a useful signal. A first weighting factor is assigned to the directional signal with the largest signal component of the useful signal and a second weighting factor is assigned to the other directional signals. The directional signals are multiplied by the respectively assigned weighting factor, and an output signal is then formed from the multiplication result. The output signal is converted into a sound signal by the output transducer.
1. A method of operating a hearing device with at least two input transducers and at least one output transducer, the method comprising:
acquiring a sound signal from the surroundings by the input transducers and generating an input signal;
forming from the input signals at least two directional signals with mutually different directional characteristics;
examining the directional signals for a presence of a useful signal;
assigning a first weighting factor to a directional signal having a largest signal component of the useful signal and assigning a second weighting factor to the other directional signals;
the second weighting factor being greater than or equal to zero and less than or equal to one;
multiplying the directional signals by a respectively assigned weighting factor to form weighted directional signals, forming an output signal from the weighted directional signals, and converting the output signal into a sound signal by the output transducer.
2. The method according to claim 1 , which comprises forming the output signal from a superposition of the directional signals multiplied by the weighting factors.
3. The method according to claim 1 , which comprises setting at least one of the first weighting factor or the second weighting factor according to an environmental situation.
4. The method according to claim 1 , wherein the first weighting factor is greater than the second weighting factor.
5. The method according to claim 1 , wherein the useful signal is a speech signal.
6. A hearing aid, comprising:
at least two input transducers for generating input signals;
at least one output transducer for generating a sound signal; and
a controller for carrying out a method according to claim 1 .
7. The hearing aid according to claim 6 configured as a binaural hearing aid.
8. A method of operating a hearing device with at least two input transducers and at least one output transducer, the method comprising:
acquiring a sound signal from the surroundings by the input transducers and generating an input signal;
forming from the input signals at least two directional signals with mutually different directional characteristics;
examining the directional signals for a presence of a useful signal;
assigning a first weighting factor to a directional signal having a largest signal component of the useful signal and assigning a second weighting factor to the other directional signals;
the first weighting factor being greater than or equal to zero and less than or equal to an adjustable parameter;
multiplying the directional signals by a respectively assigned weighting factor to form weighted directional signals, forming an output signal from the weighted directional signals, and converting the output signal into a sound signal by the output transducer.
9. The method according to claim 8 , which comprises setting the adjustable parameter according to a signal level of the useful signal.