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Hearing aid device with a directional microphone system and method for operating a hearing aid device having a directional microphone system
Hearing aid device with a directional microphone system and method for operating a hearing aid device having a directional microphone system
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机译:具有定向麦克风系统的助听器以及用于操作具有定向麦克风系统的助听器的方法
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摘要
A hearing aid device has a directional microphone system with a first microphone outputting a first microphone signal and a second microphone outputting a second microphone signal. A delay unit generates a directivity by delaying the second microphone signal or a fourth microphone signal derived therefrom by an internal time delay and associating it with the first microphone signal or a third microphone signal derived therefrom for generating a directional microphone signal. A cross-correlation analysis unit receives the first or the third microphone signal and the second or the fourth microphone signal and determines a value of a cross correlation of the two microphone signals. A control unit adjusting the time delay depending on the value of the cross correlation of the two microphone signals. A classifier determines audio conditions in which the hearing aid device is currently situated, and the time delay is adjusted depending on the audio conditions.
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