Abstract: A hearing aid is enabled for dynamic compression in a way to further improve the perception of acoustic signals in the provision of hearing assistance to a hearing-impaired person. Here, an input signal is divided into a plurality of frequency bands. Input-level-controlled dynamic compression is performed in at least one first frequency band and output-level-controlled dynamic compression is performed in at least one second frequency band. This optimizes both loudness perception and speech intelligibility.

Abstract: A magnetofluidic hearing aid system includes a hearing aid having a signal processing device connected to a magnetic transmitter. The system includes such a hearing aid and a magnetofluid suitable for use in the body. The magnetic transmitter transmits a magnetic field producing vibrations in a liquid mixture containing the magnetofluid. The liquid mixture is operatively introduced into a cochlea, and the vibrations are suitable for triggering an auditory perception in the cochlea. Acoustic feedback is precluded as a result of the transmitter producing neither acoustic signals nor mechanical vibrations. A functional impairment caused by physical influences such as soiling, for example, of an acoustic receiver, is also precluded. Problems arising from impaired contact with the body are prevented from the beginning by the non-contact signal transmission. A hearing aid supply is also advantageously enabled regardless of the functional capability of the middle ear apparatus.

Abstract: In a hearing aid offering the option of frequency transposition, sounds should still be perceivable as sounds, even after the frequency transposition. To this end, it is proposed first of all to establish sounds present in the input signal and, more particularly, the fundamental frequencies thereof and to carry out the frequency transposition as a function of the established fundamental frequencies. Here, transposed overtones are returned to the frequency grid of the fundamental frequency, and so the sound property is maintained even after the frequency transposition.

Abstract: A hearing apparatus and an associated method for suppressing feedback include a microphone emitting a microphone signal and a receiver picking up a receiver signal by subtracting a compensation signal from the microphone signal. The hearing apparatus includes a number of preset static first compensation filters for forming first compensation signals from the receiver signal and a first selection unit, which selects a first compensation signal in such a way that a feedback signal caused by the feedback is minimal in the receiver signal. An advantage thereof is that adaptation artifacts cannot occur.

Abstract: A method for signal processing for a hearing aid aims to better match signal processing for a hearing aid and in particular a hearing device to a situation and includes processing an input signal in accordance with a first processing algorithm to form a first intermediate signal and processing the input signal in accordance with a second processing algorithm to form a second intermediate signal in parallel with the processing of the input signal in accordance with the first processing algorithm. The input signal is classified by a classifier. Finally, an output signal with a constant mixture ratio is formed both from the first and from the second intermediate signals, taking into account the result of the classification. This allows the advantages of a plurality of algorithms to be used at the same time. A corresponding hearing aid is also provided.

Abstract: The invention relates to a method for operating a hearing aid as well as a hearing aid which is operated with the method. An original acoustic signal is detected. At least one original signal amplitude of the original signal is determined in the frequency domains. At least one discrete transposition signal amplitude is shifted from its original frequency to a transposition frequency. A signal change which can be perceived by the human ear is impressed onto the transposition signal amplitude. The hearing aid includes a microphone, a receiver and a signal processing apparatus. The signal processing apparatus executes the method according to the invention. The invention enables a hearing aid wearer to render distinguishable the frequency transposed signal parts in a superimposition region and the non-transposed signal parts which are available there from the outset.

Abstract: The invention specifies a method for the operation of a hearing device and an associated hearing device with at least two omnidirectional microphones emitting microphone signals. Said microphones are connected electrically to one another in order to form a signal with directional characteristic. Signal components of the signal with directional characteristic above a cut-off frequency are transposed or compressed down to a frequency range below the cut-off frequency. Here it is advantageous that a frequency transposition can only be applied to useful signals, since the directional microphone system suppresses background noises such that these are not transposed down to a low frequency range.

Abstract: A method for operating a hearing apparatus and an associated hearing apparatus is provided. A first and a second microphone emit a first and a second microphone signal. The first and the second microphone have a different directional effect, for instance as a result of a different shading by the body of a hearing device wearer. A frequency analysis of the two microphone signals is performed. A determination of a frequency-dependent amplification for an output signal of the hearing apparatus from the two microphone signals transformed in the frequency range such that frequencies are amplified in a directionally-dependent fashion.

Abstract: 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.

Abstract: The perceptibility of a useful signal during the binaural supply of a user is to be improved. To this end, a hearing apparatus with at least one microphone is proposed to pick up an input signal, which has a useful sound and an interference sound. An interference signal estimation device is used to estimate the interference sound in the input sound. A signal processing device provides a first output signal on the basis of the estimated interference sound for the one ear of the user and a second output signal on the basis of the estimated interference sound for the other ear of the user. The second output signal is provided with a predetermined time offset compared with the first output signal. A virtual local displacement of the interference signal source thus results so that the useful signal can be better perceived.