Hearing assistance system with own voice detection
First Claim
1. An apparatus configured to be worn by a wearer who has an ear and an ear canal, comprising:
- a first microphone adapted to be worn about the ear of the person;
a second microphone adapted to be worn about the ear canal of the person and at a different location than the first microphone, wherein the second microphone is positioned on an air side of the ear canal to detect signals outside the ear canal;
a sound processor adapted to process signals from the first microphone to produce a processed sound signal; and
a voice detector to receive signals from the first microphone and the second microphone, the voice detector comprising an adaptive filter configured to output information, wherein the voice detector is configured to identify a voice of the wearer from the output information.
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Accused Products
Abstract
An example of an apparatus configured to be worn by a person who has an ear and an ear canal includes a first microphone adapted to be worn about the ear of the person, and a second microphone adapted to be worn at a different location than the first microphone. The apparatus includes a sound processor adapted to process signals from the first microphone to produce a processed sound signal, a receiver adapted to convert the processed sound signal into an audible signal to the wearer of the hearing assistance device, and a voice detector to detect the voice of the wearer. The voice detector includes an adaptive filter to receive signals from the first microphone and the second microphone.
69 Citations
26 Claims
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1. An apparatus configured to be worn by a wearer who has an ear and an ear canal, comprising:
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a first microphone adapted to be worn about the ear of the person; a second microphone adapted to be worn about the ear canal of the person and at a different location than the first microphone, wherein the second microphone is positioned on an air side of the ear canal to detect signals outside the ear canal; a sound processor adapted to process signals from the first microphone to produce a processed sound signal; and a voice detector to receive signals from the first microphone and the second microphone, the voice detector comprising an adaptive filter configured to output information, wherein the voice detector is configured to identify a voice of the wearer from the output information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus configured to be worn by a wearer who has an ear and an ear canal, comprising:
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a housing configured to be worn behind the ear or over the ear; a first microphone in the housing; an ear mold configured to be positioned in the ear canal, wherein the ear mold includes an air side when positioned in the ear canal; a second microphone configured to receive acoustic signals on the air side of the ear mold; a sound processor in the housing, the sound processor adapted to process signals from the first microphone to produce a processed sound signal; a receiver adapted to convert the processed sound signal into an audible signal to the wearer; and an adaptive filter to receive signals from the first microphone and the second microphone and to identify a voice of the wearer using a peak value for coefficients of the adaptive filter and an error signal from the adaptive filter. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for detecting a voice of a wearer of a hearing assistance device where the hearing assistance device includes a first microphone and a second microphone, the method comprising:
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positioning the first microphone and the second microphone to each detect signals outside the ear canal; using a first electrical signal representative of sound detected by the first microphone and a second electrical signal representative of sound detected by the second microphone as inputs to a system including an adaptive filter; and using the adaptive filter to identify a voice of the wearer of the hearing assistance device. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification