Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A method for noise reduction in a hearing aid device is described, with a signal, which comprises a useful and an interference signal part, being processed in the hearing aid device and with the interference signal part being reduced to the benefit of the useful signal part and with the reduction of the interference signal part being carried out as a function of the input level of the signal, with the interference signal part being more heavily attenuated with a high input level than with a low input level.

Abstract: A method for processing at least one first and one second input signal in a hearing aid, with the input signals being filtered to create intermediate signals, the intermediate signals being added to form output signals, the input signals being assigned to a defined signal situation, and with the signals being filtered as a function of the assigned defined signal situation.

Abstract: Method for processing an input signal in a hearing aid, with the input signal being broken down into a discrete signal for each source relative to an acoustic signal, with the discrete signals being assigned to a spatial position of the source and with the discrete signals being output, or output attenuated, relative to the spatial position.

Abstract: A “speaker” operating mode is established by a signal processor of a hearing aid for tracking and selecting an acoustic speaker source in an ambient sound. Electric acoustic signals are generated by the hearing aid from the ambient sound that has been picked up, from which signals an electric speaker signal is selected by the signal processor by a database of speech profiles of preferred speakers. The electric speech signal is selectively taken into account in an output sound of the hearing aid in such a way that it will for the hearing-aid wearer acoustically at least be prominent compared with another acoustic source and consequently be better perceived by the hearing-aid wearer.

Abstract: A “speech” operating mode is established by a signal processor of a hearing aid for tracking and selecting an acoustic speech source in an ambient sound. The electric acoustic signals are generated by the hearing aid from the ambient sound that has been picked up, from which signals an electric speech signal very probably containing speech is identified and selected by the signal-processor, and the electric speech signal is selectively taken into account in an output sound of the hearing aid in such a way that it will for the hearing-aid wearer acoustically at least be prominent compared with another acoustic source and consequently be better perceived by the hearing-aid wearer.

Abstract: The determination of a suitable step size for controlling the adaptation of a filter of an acoustic feedback compensator especially for hearing aids is to be improved. A step size controller is therefore provided in which an input signal is analyzed in at least two frequency bands. In doing so, any steep signal edges in the individual frequency bands are detected. The adaptation step size of an adaptive filter is then controlled depending on the number of frequency bands in which steep signal edges are detected, wherein the magnitude of the signal edges can be included in the decision.

Abstract: Hearing aids with microphone and telephone coil are to be made simpler and more convenient. For this purpose it is provided to use an adaptive filter to compensate acoustic and electromagnetic feedback. In order to allow for the propagation delay differences, a delay element is connected downstream of the telephone coil. The microphone and telephone coil signals can be individually weighted with the factors a and b so that mixed mode is also possible.

Abstract: In a method and an acoustic system that generate a stereo signal for each of multiple separate sources, a blind source separation of at least two microphone signals is conducted to acquire BSS filters. Each of the microphone signals is filtered with its own filter transfer function that is the quotient of a power density spectral portion of the respective sound source and the overall power density spectrum of the respective microphone signal, such that two stereo signals are obtained for each microphone signal. An approximation of the signals to be separated, for example for each of two hearing devices, is thereby possible.

Abstract: The interference powers with directional microphones are to be suppressed as far as possible. To this end, provision is made to adaptively filter the microphone of a number of microphones as a function of at least one parameter. The directional effect of the directional microphone achieved in this way is adjusted by modifying the at least one parameter, such that the summation of interference powers including microphone noises is reduced and/or minimal.

Abstract: In a hearing aid the transmission and amplification of a useful signal is to be improved, especially in difficult environments, i.e. those susceptible to interference signals. To this end it is proposed that signals be transmitted between a first hearing aid worn by a first hearing aid wearer and a second hearing aid worn by a second hearing aid wearer. In this case the transmitted signals can consist of control parameters, sound field characteristic values or an audio signal. Further it is possible for the signal transmission between the first hearing aid and the second hearing aid to be under-taken via at least one further hearing aid which is worn by at least one further hearing aid wearer. The third hearing aid fulfills the function of a relay station in this case. Through the invention a signal with improved signal-to-noise ratio can be fed directly to the hearing of a hearing aid wearer or the signal processing of a hearing aid can be better adapted to the relevant environmental situation.

Abstract: The range for transmission of signals between hearing aids is to be improved. To this end it is proposed that signals be transmitted between a first hearing aid worn by a first hearing aid wearer and a second hearing aid worn by a second hearing aid wearer. In this case the transmitted signals can consist of control parameters, sound field characteristic values or an audio signal. In accordance with the invention a signal is transmitted between the first hearing aid and the second hearing aid via at least one further hearing aid, which is worn by at least one further hearing aid wearer. The third hearing aid fulfills the function of a relay station in this case. Through the invention a signal with improved signal-to-noise ratio can be fed directly to the hearing of a hearing aid wearer or the signal processing of a hearing aid can be better adapted to the relevant environmental situation.

Abstract: In a hearing aid and method for automatically switching to a telephone mode, for automatically detecting a telephone situation for the wearer given a binaural supply, the difference between the levels of the input signals of the two hearing devices is measured and compared with at least one threshold value. If the difference in levels drops below or exceeds the threshold value, the respective hearing device is switched to the telephone mode.

Abstract: The phase differences of microphones of a hearing aid microphone are to be reduced. To do this, the level of an output signal (y1(t)) of a directional microphone is compared with an omnidirectional signal (y1?(t)). If the level of the output signal of the differential directional microphone (y1(t)) is above the level of the omnidirectional signal (y1?(t)), this level difference is minimized by an adaptive, frequency-selective transit time compensation (A) in individual frequency bands and phase matching of the microphones (M1,M2) is thus achieved. By means of an alternative method, microphone matching is achieved in that the measurable delay of the two microphone signals (x1,x2) is adaptively limited in individual frequency bands to a maximum value corresponding to the sound transit time between the microphones (M1,M2). Phase matching without knowing the position of a sound source can thus be achieved.

Abstract: In a hearing aid and method for automatically switching to a telephone mode, for automatically detecting a telephone situation for the wearer given a binaural supply, the difference between the levels of the input signals of the two hearing devices is measured and compared with at least one threshold value. If the difference in levels drops below or exceeds the threshold value, the respective hearing device is switched to the telephone mode.