Method for automatic amplification adjustment in a hearing aid device, as well as a hearing aid device
First Claim
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1. A method for automatic amplification adjustment in a hearing aid device, comprising:
- transducing an acoustic input signal into an electrical signal;
determining a speech signal level and a noise signal level in a plurality of frequency bands of the electrical signal; and
determining parameters for automatic adjustment of an amplification of the electrical signal depending on the speech signal level, the noise signal level, and frequency of the electrical signal dynamically, wherein determining parameters comprises applying a loudness model.
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Abstract
To improve the speech comprehensibility given treatment with a hearing aid device, during the operation of the hearing aid device speech signal levels and noise signal levels are determined in a plurality of frequency bands of an input signal. An automatic adjustment of the amplification follows, dependent on the determined signal level and the signal frequency. The determination of amplification parameters thereby ensues under inclusion of a loudness model and a speech comprehensibility model.
35 Citations
17 Claims
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1. A method for automatic amplification adjustment in a hearing aid device, comprising:
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transducing an acoustic input signal into an electrical signal; determining a speech signal level and a noise signal level in a plurality of frequency bands of the electrical signal; and determining parameters for automatic adjustment of an amplification of the electrical signal depending on the speech signal level, the noise signal level, and frequency of the electrical signal dynamically, wherein determining parameters comprises applying a loudness model. - View Dependent Claims (2, 3, 4, 5)
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6. A hearing aid device, comprising:
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a filter bank comprising an electrical signal input configured to split an electrical signal into frequency bands, the filter bank comprising an output for a signal in each frequency band; one or more level detecting devices comprising an input that is connected to the filter bank output, and an output, the level detecting devices being configured to determine a speech signal level and a noise signal level in the frequency bands; and a parameter determining device comprising an input connected to the output of the level detecting devices, the parameter determining device being configured to determine parameters to automatically adjust an amplification of the electrical signal dependent on the speech signal level and the noise signal level dynamically, wherein the parameter determining device further comprises a loudness model that is configured to assist in the parameter determination. - View Dependent Claims (7, 8, 9, 10)
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11. A method for automatic amplification adjustment in a hearing aid device, comprising:
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transducing an acoustic input signal into an electrical signal; determining a speech signal level and a noise signal level in a plurality of frequency bands of the electrical signal, and; determining parameters for automatic adjustment of an amplification of the electrical signal depending on the speech signal level, the noise signal level, and frequency of the electrical signal dynamically, wherein determining parameters comprises applying a speech comprehensibility model. - View Dependent Claims (12, 13, 14)
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15. A hearing aid device, comprising:
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a filter bank comprising an electrical signal input configured to split an electrical signal into frequency bands, the filter bank comprising an output for a signal in each frequency band; one or more level detecting devices comprising an input that is connected to the filter bank output, and an output, the level detecting devices being configured to determine a speech signal level and a noise signal level in the frequency bands; and a parameter determining device comprising an input connected to the output of the level detecting devices, the parameter determining device being configured to determine parameters to automatically adjust an amplification of the electrical signal dependent on the speech signal level and the noise signal level dynamically, wherein the parameter determining device further comprises a speech comprehensibility model that is configured to assist in the parameter determination. - View Dependent Claims (16, 17)
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Specification