| Patent application number | Description | Published |
|---|
| 20090022344 | Method for signal processing in a hearing aid - Processing two input signals in a hearing aid with a first source separation and a second source separation is provided. A comparison of a first correlation with a second correlation and with a change in the first coefficient set as a function of a second coefficient set when the second correlation is smaller than the first correlation, with the second coefficient set being changed as a function of the first coefficient set when the second source separation is reset. | 01-22-2009 |
| 20090028362 | Hearing device with a visualized psychoacoustic variable and corresponding method - The setting and/or adjustment of a hearing device for a user is provided. The hearing device includes a signal processing facility for processing an input sound to form an output sound, with a perceptive model being implemented in the signal processing facility or in a processing facility connected in a data link therewith, with which perceptive model a psychoacoustic variable can be provided in respect of the output sound. A visualization facility, for instance integrated in a remote control comprising the processing facility, is preferably wirelessly connected to the signal processing facility. A value of the psychoacoustic variable can thus be visualized accordingly. In this way an assisting person obtains an item of information relating to the perception of the sound supplied by the hearing device by the user, as a result of which the setting is facilitated for the assisting person. | 01-29-2009 |
| 20090028363 | Method for setting a hearing system with a perceptive model for binaural hearing and corresponding hearing system - A hearing system is provided that includes a left device that supplies an electrical sound signal for supplying the left ear of the user, and a right device that supplies an electrical sound signal for supplying the right ear of the user. A perceptive model for binaural hearing is implemented at least in one of the two devices or a further device belonging to the hearing system, with which a left setting value for the left device and/or a right setting value for the right device can be determined on the basis of the two sound signals. The left device can then be set with the left setting value and/or the right device with the right setting value. The entire process of the binaural hearing and not only the monaural hearing is thus taken into consideration for the setting of the hearing system. | 01-29-2009 |
| 20090034767 | Method for adapting a hearing aid by a perceptive model - The provision of an individually adapted hearing aid for a patient is intended to be effected more quickly. A method is therefore provided by which, firstly, hearing loss data, in particular an audiogram, are generated by a person skilled in the art for example an ENT specialist, and the hearing loss data are transmitted to a manufacturer. Using a perceptive model based on the hearing loss data, the manufacturer selects a hearing aid and matches the hearing aid to the patient by means of the perceptive model. Finally, the manufacturer delivers the adapted hearing aid directly or indirectly to the patient. Due to the simplified workflow during the adaptation, the waiting times for the provision of the hearing aid are reduced for the patient. | 02-05-2009 |
| 20090041272 | Method for operation of a hearing device system and hearing device system - There is described a method for operation of a hearing device system with two microphones arranged spatially separated from one another and with sound-generating output units assigned to these microphones, in which, by comparison of the microphone signals or of signals derived therefrom, feedback is detected, and on detection of the feedback measures are initiated for reducing the feedback, and with the comparison of the microphone signals or of signals derived therefrom comprising a frequency-selective power comparison. There is also described a hearing device system suitable for this method. | 02-12-2009 |
| 20090285423 | Method and device for matching the phases of microphone signals of a directional microphone of a hearing aid - The phase differences of microphones of a hearing aid microphone are to be reduced. To do this, the level of an output signal of a directional microphone is compared with an omnidirectional signal. If the level of the output signal of the differential directional microphone is above the level of the omnidirectional signal, this level difference is minimized by an adaptive, frequency-selective transit time compensation in individual frequency bands and phase matching of the microphones is thus achieved. By means of an alternative method, microphone matching is achieved in that the measurable delay of the two microphone signals is adaptively limited in individual frequency bands to a maximum value corresponding to the sound transit time between the microphones. Phase matching without knowing the position of a sound source can thus be achieved. | 11-19-2009 |
| 20100027821 | Hearing aid and method for operating a hearing aid - The invention relates to a method for a hearing aid wearer to actively operate a hearing aid. A signal processing section of the hearing aid has a demixing module for separating audio signals and a postprocessor module which sets up a hold mode of operation for the hearing aid. An audio signal, which is preferred by the hearing aid wearer, from an ambient sound, is tracked and selected by virtue of the hearing aid wearer transmitting to the hearing aid a command which sets up the hold mode of operation in the signal processing section of the hearing aid for a certain period. The signal processing section tracks the preferred audio signal and selectively takes account of it in an output sound from the hearing aid such that it is audibly highlighted for the hearing aid wearer in comparison with another audio signal and is thereby perceived better. | 02-04-2010 |
| 20100034406 | Method for Operating a Hearing Aid, And Hearing Aid - The invention relates to a method for operating a hearing aid. A local source operating mode is established by a signal processing section of the hearing aid for tracking and selecting a local acoustic source of an ambient sound. Electrical acoustic signals from which the local acoustic source is determined by the signal processing section are generated by the hearing aid from the detected ambient sound. The local acoustic source is selectively taken into account by the signal processing section in an output sound of the hearing aid such that the local acoustic source is at least acoustically prominent and is therefore better perceived compared to another acoustic source for a hearing aid wearer. | 02-11-2010 |
| 20100046776 | Adaptive microphone system for a hearing device and associated operating method - A microphone system and an associated method are proposed. The microphone system comprises at least two omnidirectional, microphone signal-emitting directional microphones connected electrically to one another to establish directivity, at least one filter unit with at least one adaptation parameter for the adaptive filtering of the at least two microphone signals and a control unit to change the at least one adaptation parameter such that the sum of interference power is reduced. The value range of the at least one adaptation parameter is limited. The control unit determines limits from a comparison of the noise floor of the ambient noise with a microphone noise number. The adaptation range of an adaptive differential directional microphone is a function of stationary component of background noise, so the directivity can be selected such that the non-stationary microphone noise resulting due to directivity is masked by the stationary component of the background noise. | 02-25-2010 |
| 20100098276 | Hearing Apparatus Controlled by a Perceptive Model and Corresponding Method - A hearing device including a signal processing device for processing an input signal and generating an output signal and a modeling device in which a perceptive model is implemented, in order to generate a psycho-acoustic value for controlling the signal processing device, is provided. Data mapping of the hearing loss, in particular audiogram data, are input into the modeling device and the perceptive model determines the psycho-acoustic value for controlling the signal processing device based on the data from the data mapping and the output signal. | 04-22-2010 |
| 20100158290 | METHOD FOR SELECTING A PREFERRED DIRECTION OF A DIRECTIONAL MICROPHONE AND CORRESPONDING HEARING DEVICE - The preferred direction of a directional microphone of a hearing device and, in particular, a hearing aid should be selected automatically in a quick and reliable fashion. To this end, provision is made for a method for operating a hearing device with such a microphone which can be switched into at least a first and a second directional characteristic. Initially, respectively one signal-to-noise ratio is determined for the first and the second directional characteristic. Subsequently, the directional microphone is switched into that one of the two directional characteristics which leads to the higher signal-to-noise ratio. In particular, the total signal powers of different directional microphone signals can be determined to this end and the interference signal powers can be calculated in parallel thereto in a channel-specific fashion. Corresponding SNR values then result from the differences in the logarithmic power values. | 06-24-2010 |
| 20100202636 | Method for Adapting a Hearing Device Using a Perceptive Model - Adaptation of hearing devices is rendered more convenient and more accurate with a method for adapting a hearing device to a hearing device support. The hearing device is selected on the basis of initial data of several hearing devices with respect to the data relating to hearing loss of the hearing device support. The selected hearing device is preset using a target reinforcement curve and, optionally, a setting of the preset hearing device is finely adjusted. At least one of the mentioned steps of selecting and presetting as well as, optionally, the step of fine adjustment is carried out by means of a single perceptive model which individualizes the hearing loss data projected by the hearing loss of the hearing device support. | 08-12-2010 |
| 20100246850 | METHOD AND ACOUSTIC SIGNAL PROCESSING SYSTEM FOR BINAURAL NOISE REDUCTION - A method and an acoustic signal processing system for noise reduction of a binaural microphone signal are proposed. A source signal and two interfering signals input to a left and a right microphone of a binaural microphone system respectively. A left and a right microphone signal is filtered by a Wiener filter to obtain binaural output signals of the source signal. The Wiener filter is calculated as | 09-30-2010 |
| 20110007918 | FILTER BANK CONFIGURATION FOR A HEARING DEVICE - 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. | 01-13-2011 |
