Patent ID: 6751325
Filing Date: 2004-06-15
Classification: H04R

Abstract:
A hearing aid comprising:a microphone unit having at least two microphones, each emitting a microphone signal so that said microphone unit emits at least two microphone signals, said microphone unit having a directional characteristic associated therewith and each of said microphone signals having signal components with respective intensities; a signal processing unit supplied with said microphone signals which performs a directionally dependent processing action on said microphone signals to amplify or attenuate said components of said microphone signals, said directionally dependent processing action being selected from the group consisting of modifying the directional characteristic of the microphone unit, differently filtering said microphone signals, and selecting a noise elimination technique for eliminating noise from said microphone signals; a directional analysis unit also supplied with said microphone signals for performing a directional analysis of said microphone signals by identifying said respective intensities of said signal components, to generate a directional analysis result; said signal processing unit being supplied with said directional analysis result and modifying said processing action dependent on said directional analysis result to generate a processing unit output signal; and a reproduction unit supplied with said processing unit output signal for converting said processing unit output signal into an audio signal and for emitting said audio signal.