Methods and apparatuses for setting a hearing aid to an omnidirectional microphone mode or a directional microphone mode
First Claim
1. A method of automatic switching between a first microphone mode and a second microphone mode in a binaural hearing aid, the binaural hearing aid comprising a processing unit, a first microphone system for provision of a first input signal, and a second microphone system for provision of a second input signal, where the first microphone system is configured for use by a first ear of a user, and the second microphone system is configured for use by a second ear of the user, the method comprising:
- obtaining modulations of the first input signal and the second input signal;
determining a first evaluation index of speech intelligibility for the first input signal using a processing unit;
determining a second evaluation index of speech intelligibility for the second input signal;
determining whether one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; and
setting one or both of the first microphone system and the second microphone system based on a result from the act of determining whether the one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility, wherein the act of setting is performed by the binaural hearing aid;
wherein the act of setting comprises setting one of the first microphone system and the second microphone system to the first microphone mode, and setting the other one of the first microphone system and the second microphone system to the second microphone mode, the second microphone mode being different from the first microphone mode.
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Accused Products
Abstract
A binaural hearing aid includes: at least one signal processor; a first microphone system for provision of a first input signal; and a second microphone system for provision of a second input signal, where the first microphone system is adapted to be placed in or at a first ear of a user, and the second microphone system is adapted to be placed in or at a second ear of the user. The signal processor is configured for: obtaining modulations of the first input signal and the second input signal with at least the first microphone system being in an omni directional microphone mode; evaluating the modulations of the first input signal and the second input signal; and setting one or both of the first microphone system and the second microphone system based on a result from the act of evaluating.
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Citations
31 Claims
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1. A method of automatic switching between a first microphone mode and a second microphone mode in a binaural hearing aid, the binaural hearing aid comprising a processing unit, a first microphone system for provision of a first input signal, and a second microphone system for provision of a second input signal, where the first microphone system is configured for use by a first ear of a user, and the second microphone system is configured for use by a second ear of the user, the method comprising:
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obtaining modulations of the first input signal and the second input signal; determining a first evaluation index of speech intelligibility for the first input signal using a processing unit; determining a second evaluation index of speech intelligibility for the second input signal; determining whether one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; and setting one or both of the first microphone system and the second microphone system based on a result from the act of determining whether the one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility, wherein the act of setting is performed by the binaural hearing aid; wherein the act of setting comprises setting one of the first microphone system and the second microphone system to the first microphone mode, and setting the other one of the first microphone system and the second microphone system to the second microphone mode, the second microphone mode being different from the first microphone mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of automatic switching between a first microphone mode and a second microphone mode in a binaural hearing aid, the binaural hearing aid comprising a processing unit, a first microphone system for provision of a first input signal, and a second microphone system for provision of a second input signal, where the first microphone system is configured for use by a first ear of a user, and the second microphone system is configured for use by a second ear of the user, the method comprising:
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obtaining modulations of the first input signal and the second input signal; determining a first evaluation index of speech intelligibility for the first input signal using a processing unit; determining a second evaluation index of speech intelligibility for the second input signal; determining whether one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; and setting one or both of the first microphone system and the second microphone system based on a result from the act of determining whether the one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility, wherein the act of setting is performed by the binaural hearing aid; wherein the act of obtaining the modulations of the first input signal and the second input signal is performed with one of the first microphone system and the second microphone system being in the first microphone mode, and the other one of the first microphone system and the second microphone system being in the second microphone mode, the second microphone mode being different from the first microphone mode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A binaural hearing aid comprising:
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at least one signal processor; a first microphone system for provision of a first input signal; a second microphone system for provision of a second input signal, where the first microphone system is adapted to be placed in or at a first ear of a user, and the second microphone system is adapted to be placed in or at a second ear of the user; wherein the at least one signal processor is configured for; obtaining modulations of the first input signal and the second input signal, determining a first evaluation index of speech intelligibility for the first input signal, determining a second evaluation index of speech intelligibility for the second input signal, determining whether one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; and setting one or both of the first microphone system and the second microphone system based on a result from the act of determining whether the one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; wherein the at least one signal processor is configured for setting one of the first microphone system and the second microphone system to a first microphone mode, and setting the other one of the first microphone system and the second microphone system to a second microphone mode that is different from the first microphone mode. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A binaural hearing aid comprising:
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at least one signal processor; a first microphone system for provision of a first input signal; a second microphone system for provision of a second input signal, where the first microphone system is adapted to be placed in or at a first ear of a user, and the second microphone system is adapted to be placed in or at a second ear of the user; wherein the at least one signal processor is configured for; obtaining modulations of the first input signal and the second input signal, determining a first evaluation index of speech intelligibility for the first input signal, determining a second evaluation index of speech intelligibility for the second input signal, determining whether one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; and setting one or both of the first microphone system and the second microphone system based on a result from the act of determining whether the one or more criterions are met by the first evaluation index of speech intelligibility and the second evaluation index of speech intelligibility; wherein the at least one signal processor is configured for obtaining the modulations of the first input signal and the second input signal is performed with one of the first microphone system and the second microphone system being in a first microphone mode, and the other one of the first microphone system and the second microphone system being in a second microphone mode that is different from the first microphone mode.
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Specification