Siemens Audiologische Technik Gmbh

Siemens Medical Instruments Pte. Ltd.

Sivantos Pte. Ltd.

Wolfgang Sörgel

Henning Puder

Ulrich Kornagel

Robert Bäuml

Oliver Dreβler

Eghart Fischer

Roland Barthel

Heinz Goeckler

Thomas Pilgrim

Philipp Höcht

Daniel Alfsmann

Alexander Schasse

Andreas Tiefenau

Robert Baüml

Thomas Kurbiel

Rainer Prof Martin

Heinz Pr Goeckler

Synthetically generated signals are reproduced via a binaural hearing system, which includes two hearing devices. After reproducing a first signal via the first hearing device a reproduction of a second signal via the second hearing device is also carried out delayed by a defined time interval. The additional time delay is to be quantified such that the impression of a sound amplification is produced with a hearing system wearer.

Method and facility for reproducing synthetically generated signals by means of a binaural hearing system

Multi-stage filter bank systems with filter banks of different bandwidth frequently cause interference in hearing apparatuses and in particular in hearing devices. Therefore a hearing apparatus is proposed with a filter bank system having a multi-stage analysis filter bank and/or a multi-stage synthesis filter bank, to break down an input signal of the hearing apparatus into a number of partial band signals by way of a number of filter bank channels and/or to recombine partial band signals of a number of filter bank channels. The filter bank system is equipped with at least one equalization filter, to equalize differences in the complex frequency responses between filter bank channels. It is thus possible in particular to equalize group delay time differences as well as attenuation and/or amplification.

Hearing apparatus with an equalization filter in the filter bank system

A filter bank configuration for a hearing device has filters in an analysis filter bank and corresponding filters in a synthesis filter bank that are coupled pair-wise to form a channel in each case. In order to compensate for a hearing loss, sub-band signals are amplified in the individual channels with the aid of multipliers. In the process, an audible distortion of an output signal Y of the filter bank configuration as a result of differences between amplification factors of the multipliers of neighboring channels should be prevented. Here, at least one channel changes a phase of a sub-band signal transmitted by the channel such that a difference between a group delay of the filter bank configuration and a prescribable reference value is reduced for at least one predetermined frequency. The filter bank configuration is particularly suited to hearing aids.

Filter bank configuration for a hearing device

The invention relates to a hearing aid with at least one sound receiver and a sound generator. The hearing aid has an audio signal unit operatively connected to the sound generator, the audio signal unit being designed to generate an audio signal perceptible to a human ear. The audio signal has a plurality of mutually different frequencies of a frequency range. The audio signal unit has at least one tone generator. The at least one tone generator is designed to generate the audio signal with at least one fundamental frequency representing a tone and with harmonics of the fundamental frequency.

Hearing aid with an audio signal generator

The object is to improve the effect of a noise reduction algorithm for hearing apparatuses and in particular hearing aids. This is achieved by a method wherein the input signal is modeled by a wanted signal model and a noise signal model. In addition, a signal statistic of the input signal is recorded in a data logging unit. The wanted signal model and/or the noise signal model can now be changed as a function of said signal statistic. Finally the noise component of the input signal is reduced using the noise signal model and/or the wanted signal model. This means that the models used can be continuously adapted to the hearing apparatus user's current situation.

Method for reducing noise using trainable models

The noise reduction for signals which can contain speech at least part of the time is to be improved. To this end a hearing apparatus and especially a hearing device with a first estimation device for estimating a first value of an input signal with a first estimation algorithm and a noise reduction device for reducing noise in the input signal are provided. A second estimation device, which is parameterized with the estimated first value, is used for estimating a second value of the input signal with a second estimation algorithm. The noise reduction device receives the estimated second value from the second estimation device for reducing the noise. The two-stage estimation method enables an adaptive estimation to be carried out which is always currently adapted to an input signal.

Multi-stage estimation method for noise reduction and hearing apparatus

The invention relates to an adjustable hearing aid to which at least one parameter which influences the response and amplification characteristics of the hearing aid can be adjusted, with means being included which carry out testing of the effectiveness of an adjustment of this parameter in the prevailing auditory situation, and means being included which, given the existence of a minimum effectiveness, enable the adjustment option of this parameter.

Individually adjustable hearing aid and method for its operation

An unintentional adjustment of the user-controlled control elements on the device can result within the scope of the activation of a hearing device, after a switch-on delay has elapsed. To reduce this risk, a delay in the release of the user-controlled control elements attached to the device is provided in accordance with the invention in addition to the said switch-on delay.

Method for operating a hearing device

The invention relates to a hearing aid having an audio signal unit which is operatively connected to a sound generator and generates an audio signal which has at least two audio signal sections immediately succeeding one another in time. The audio signal sections each have an audio signal section duration and the audio signal has at least one frequency that is audible to the human ear. The audio signal sections succeed one another in such a way that an audio signal section succeeding a previous audio signal section in time begins before the previous audio signal section has terminated, with the result that the previous and the succeeding audio signal section overlap one another with an overlapping time period, the overlapping time period being shorter than the audio signal section duration of the previous audio signal section.

Hearing aid having an audio signal generator and method

The invention relates to a hearing aid having a sound receiver and a sound generator. The hearing aid also has an audio signal unit that is functionally linked to the sound generator and has a tone signal generator for generating a tone signal as a function of a trigger signal and of a generation parameter which represents a frequency that can be perceived by a human ear. The hearing aid also has a memory, connected to the tone signal generator, for storing the generation parameter. The audio signal unit changes the generation parameter stored in the memory, generates a trigger signal for each tone signal requiring to be generated, sends said trigger signal to the tone signal generator, and sends the generated tone signal to the sound generator.

The output of signal tones from hearing aids for binaural coverage is to be synchronized. To this end, it is provided that the counters of the two hearing aids are equalized by a synchronization signal. By transmitting a control signal with a count value or before a predetermined count value, the simultaneous emission of a signal tone from the two hearing aids is initiated. Alternatively, for the indirect synchronization of the counters the respective differences of the counter readings may also be stored in the individual hearing aids.

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Erlangen, Germany

Wolfgang Sörgel