Method of operating a hearing aid system and a hearing aid system
AssigneeWidex A/S
InventorsLars Dalskov Mosgaard, Thomas Bo Elmedyb, Michael Johannes Pihl, Georg Stiefenhofer, Jakob Nielsen, Adam Westermann
Life of this patent
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Abstract
A method of operating a hearing aid system in order to provide improved sound environment classification and a hearing aid system (200) for carrying out the method.
Claims17
A method of operating a hearing aid system comprising the steps of:
- providing a first and a second input signal, wherein the first and second input signal represent the output from a first and a second microphone respectively;
- determining at least one of an unbiased mean phase and a resultant length from samples of inter-microphone phase differences between said first and second microphone;
- using at least one of the unbiased mean phase and the resultant length to classify a sound environment.
A hearing aid system comprising a first and a second microphone, a digital signal processor and an electrical-acoustical output transducer;
- wherein the digital signal processor is configured to apply a frequency dependent gain that is adapted to at least one of suppressing noise and alleviating a hearing deficit of an individual wearing the hearing aid system, and;
- wherein the digital signal processor is adapted to determine a multitude of samples of the inter-microphone phase difference between the first and the second acoustical-electrical input transducers, and;
- wherein the digital signal processor is adapted to determine at least one of an unbiased mean phase and a resultant length from the multitude of samples of the inter-microphone phase difference, and;
- wherein the digital signal processor is further adapted to use at least one of the unbiased mean phase and the resultant length to classify a sound environment.
A non-transitory computer readable medium carrying instructions which, when executed by a computer, cause the following method to be performed:
- providing a first and a second input signal, wherein the first and second input signal represent the output from a first and a second microphone respectively;
- determining at least one of an unbiased mean phase and a resultant length from samples of inter-microphone phase differences between said first and second microphone;
- using at least one of the unbiased mean phase and the resultant length to classify a sound environment.
An internet server comprising a downloadable application that may be executed by a personal communication device, wherein the downloadable application is adapted to cause the following method to be performed:
- providing a first and a second input signal, wherein the first and second input signal represent the output from a first and a second microphone respectively;
- determining at least one of an unbiased mean phase and a resultant length from samples of inter-microphone phase differences between said first and second microphone;
- using at least one of the unbiased mean phase and the resultant length to classify a sound environment.
Dependencies are inferred from the claim text.