Sivantos Pte. Ltd.

Siemens Medical Instruments Pte. Ltd.

Alexander Schasse

Henning Puder

Rainer Martin

Eghart Fischer

Ulrich Kornagel

Wolfgang Sörgel

Thomas Pilgrim

Wolfgang Soergel

Rainer Prof Martin

A method performs noise suppression in hearing aids. A step of the method involves a first audio signal being split into a plurality of essentially disjunct frequency bands. A further step of the method involves a reference band being selected from the plurality of frequency bands, which reference band has an establishable first component of a speech signal. Another step involves a correlation between the reference band and a first frequency band being ascertained. A further step involves a value that indicates a second component of a speech signal in the first frequency band being ascertained on the basis of the correlation. Another step of the method involves a noise suppression being set in the first frequency band on the basis of the ascertained value.

Method and apparatus for noise suppression based on inter-subband correlation

A hearing apparatus that processes an audio signal by adaptive filtering operates efficiently. The hearing apparatus has a first stage transformation unit and at least two second stage transformation units. Each of the second stage transformation units splits the signal of one of the first stage channels through transformation onto sub-channels of the channel. A filter unit in each channel that has a second stage transformation unit filters the signal of the channel depending on weighting factors that are determined in each case for the sub-channels. The filter units are configured to exchange weighting factors among themselves, which means that only some of the weighting factors actually need to be calculated.

Hearing apparatus having an adaptive filter and method for filtering an audio signal

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Bochum, Germany

Alexander Schasse