Abstract: In a hearing device with low feedback tendency with simultaneous open feed and utilization of the natural directional effect of the pinna, the hearing device has a tube-shaped ear fitting piece for insertion into an auditory canal and speaker is arranged in the ear fitting piece, and at least two microphones are arranged in the ear fitting piece acoustically-symmetrically to the speaker in the built-in state of the hearing device in the ear fitting piece. The sound emitted by the speaker that can be differentiated from the usable sound, such that the level of feedback can be reduced. At the same time, open feed and utilization of the natural directional effect of the pinna are ensured.

Abstract: A hearing aid and appertaining method of adjustment permit adjusting a hearing aid more conveniently and more specifically. For this purpose, parameters for real hearing situations are stored in a storage device in the hearing aid or in the remote control for an adjustment procedure by the hearing aid wearer him- or herself. These hearing examples are then reproduced to the hearing aid wearer for the adjustment procedure. The hearing aid wearer therefore does not have to wait for a corresponding hearing situation in his surrounding area for the adjustment process and can repeat the adjustment process as required.

Abstract: A directional microphone for a hearing device should be easy for the user to operate. To this end it is equipped with an orientation sensor, such that it can be controlled as a function of orientation. It is for example possible in this manner to switch it to directional operation, when it is aligned horizontally. When it is aligned vertically, the directional microphone is for example switched automatically to omni-directional operation. omni-directional operation.

Abstract: The adaptation of a hearing aid to the wearer is made more convenient according to a hearing aid and method of use. A hearing situation is classified according to a hearing situation at any one time, the sound of the hearing aid is stored, and subsequently the sound setting with the assigned classification is stored. In this case, the sound setting is automatically stored with the associated classification after each adjustment.

Abstract: Hearing devices with a first behind-the-ear part and a second in-the-ear part should be easy to insert. For this purpose a rigid linking element is proposed, which connects the first and second parts. Alternatively, the linking element can be made of a memory material or have a spring component, so that the second part is automatically pushed into the auditory canal. A helical groove around the second part is also advantageous, thereby ensuring automatic insertion into the auditory canal and also ventilation for an open fitting.

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: The emission of information signals for informing a user about specific settings or statuses of a hearing aid should be improved. In addition, it is proposed to offer the user a plurality of different information signals which he can freely assign to different settings and or statuses of the hearing aid. In addition, different information signals are emitted as a function of the currently available hearing situation and/or the currently set hearing program for one and the same setting and/or for one and the same status of the hearing aid. The user is thus able to better identify the information signals.

Abstract: In a hearing aid the emission of a voice signal to announce the current time of day is to be output in a simple and cost-effective manner. In addition, a proposal is made to only save the voice signal for the current time of day in the hearing aid and to constantly update this voice signal by means of an external transmitter, preferably a remote controller. In this way, less memory space is thus required in the hearing aid for the time announcement.

Abstract: As a result of the intended miniaturization of digital hearing aids, a quartz crystal cannot be used for generating the system clock. The inaccuracy of the system clock resulting therefrom cannot be tolerated in certain filter applications. It is thus proposed to adhere more precisely to the target value of the clock frequency of the system clock emitted by a clock generator by means of an externally generated clock signal. The external clock signal which can be generated for example in a remote controller for the hearing aid and can be transmitted wirelessly to the hearing aid is used to examine and if necessary readjust the system clock of the hearing aid. In this way, a relatively more precise and stable system c lock can be adhered to at least across more lengthy time segments and without the use of a quartz crystal in the hearing aid.

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 order to suppress at least one interference signal in an incoming audio signal using a directional microphone system having at least two microphones, that directional microphone signal which has the lowest interference signal component is selected from two or more directional microphone signals that have been produced by weighted combination from the signals of the microphones, with the weighting in each case determining a direction-dependent sensitivity. If a sensitivity distribution has a minimum in the direction of the interference signal source, then a low signal energy is detected, which characterizes a lower interference signal component.

Abstract: In a transmission apparatus for transmitting signals to a hearing device, as well as transmission and operating methods thereof, and a hearing aid apparatus, not only the acoustic path but also an electromagnetic path are used to transmit the same signal. So that the data rate can be reduced for low power consumption, only the envelope of the useful signal is transmitted electromagnetically. This allows a useful signal to be transmitted from one hearing device to another hearing device electromagnetically with low power consumption. The reception-end hearing device then restores the source signal, containing interference, with the electromagnetically transmitted envelope to produce an output signal.

Abstract: In a hearing aid having a microphone system composed of multiple microphone units, in order to avoid artefacts from being created when switching between different directional characteristics, the signal levels of microphone signals that respectively originate from different microphone units with different-order directional characteristics are matched with regard to a reference signal. The switching or superimposition is then always carried out between microphone signals with the same signal level, so that the switching or superimposition does not result in any sudden level changes.

Abstract: For improving the directionality of a hearing aid having a microphone system formed by two or more microphones without in the process creating an increase in the microphone noise that the hearing aid wearer finds to be disturbing, the microphone system is adjusted statically or adaptively taking into account the individual rest hearing threshold and/or taking into account the individual masking threshold for the microphone noise that is produced by the microphone system. The greatest possible extent of directionality thus can be allowed, without the hearing aid wearer in the process finding the microphone noise that is produced by the microphone system to be disturbing.

Abstract: To determine the direction of incidence for a signal from an acoustic signal source using a directional microphone system, which has at least two microphones, two or more directional microphone signals are produced, each having a direction-dependent sensitivity distribution with a minimum in one direction. The directional microphone signals are assessed with regard to a quantity to determine the directional microphone signal which is most influenced by the associated direction dependent sensitivity distribution. The direction of incidence is determined as being the direction in which the minimum of the sensitivity distribution of this directional microphone signal is located.

Abstract: In order to suppress at least one interference signal in an incoming audio signal using a directional microphone system having at least two microphones, that directional microphone signal which has the lowest interference signal component is selected from two or more directional microphone signals that have been produced by weighted combination from the signals of the microphones, with the weighting in each case determining a direction-dependent sensitivity. If a sensitivity distribution has a minimum in the direction of the interference signal source, then a low signal energy is detected, which characterizes a lower interference signal component.

Abstract: In a hearing aid and a method for processing microphone signals in a hearing aid, a signal processing unit is provided in order to amplify and/or attenuate signal parts of at least two microphone signals in a directionally dependent manner. The hearing aid has a signal analysis unit that is capable of modifying at least one property of the direction-dependent amplification and/or attenuation thereby achieving high transmission quality and noise suppression in a multitude of auditory situations.

Abstract: The correct recognition of the auditory situation “television” often poses a problem for hearing aid devices with automatic situation recognition, since a plurality of real situations are simulated by the television audio signal. To correctly recognize the situation “television”, the invention therefore provides to detect a line signal with a particular line signal frequency output by the television device, and given the existence of such a line signal to automatically implement the auditory situation “television”.

Abstract: An adaptive differential microphone array method comprises receiving a signal, estimating a measured signal spectral covariance matrix of the signal, and estimating a direction of arrival of the signal based on the measured signal spectral covariance matrix of the signal. The method further comprises determining a fractional delay, and applying a differential microphone array filter to the signal based on the direction of arrival and the fractional delay.

Abstract: A hearing aid is provided that avoids disturbing acoustic effects caused by on, off, or switchover events. The signal processing in the hearing aid is switched in sliding fashion from a first operating condition into a second operating condition. According to the invention, both operating conditions are simultaneously present in the hearing aid during the switching event. The sliding transition ensues by a parallel signal processing in at least two signal paths of the hearing aid, whereby a signal that results from the first operating condition and a signal that results from the second operating condition are added in changing weighting.