Method for Noise Reduction and Associated Hearing Device
OwnerTimo Gerkmann, Rainer Martininventors
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Abstract
The invention specifies a method for noise reduction of an input signal of a hearing device. The cepstrum coefficients of the input signal, of the changed input signal and/or of at least one parameter obtained from the input signal are modified. The modified cepstral coefficients are used for formation of an output signal from the input signal. The output signal has reduced noise in relation to the input signal. With instationary noises in particular, an estimation is improved and an improved auditive quality is achieved for the hearing device.
Claims14
-7. (canceled)
A method for a noise reduction of an input signal of a hearing device, comprising:
- generating a cepstral coefficient of the input signal;
- modifying the cepstral coefficient of the input signal;
- and
- generating a noise-reduced output signal from the input signal using the modified cepstral coefficient.
A hearing device, comprising:
- a signal processing unit comprising:
- a power estimator that estimates a spectral coefficient of an input signal of the hearing device;
- and
- a replacement unit that:
- generates a cepstral coefficient of the input signal from the spectral coefficient,
- modifies the cepstral coefficient of the input signal, and
- generates a noise-reduced output signal from the input signal using the modified cepstral coefficient.
A computer program product executed on a hearing device for a noise reduction, comprising:
- a computer program that:
- estimates a spectral coefficient of an input signal of the hearing device,
- generates a cepstral coefficient of the input signal from the spectral coefficient,
- modifies the cepstral coefficient of the input signal, and
- generates a noise-reduced output signal from the input signal using the modified cepstral coefficient.
Dependencies are inferred from the claim text.