Abstract: A method operates an apparatus for tinnitus characterization, in which, in a first step, a broadband test signal having a number of signal frequencies is generated and compared with a tinnitus noise. The respective test signal is stored with an associated comparison result. A probability correlation for determining the tinnitus noise is established based on the stored test signals and comparison results. In a second step, the amplitudes of the individual signal frequencies of the test signal are varied. The first and second steps are performed repeatedly until the probability correlation reaches or exceeds a first threshold value. In a third step, the amplitudes of the individual signal frequencies of the test signal are varied with reference to the probability correlation.

Abstract: A hearing aid has an acoustoelectric transducer, a pickup device for picking up an electrical or electromagnetic signal and converting it into an electrical signal. The hearing aid further has a signal processing device, an electromechanical transducer for outputting an acoustic signal, and a signal estimation device. The signal estimation device determines a correlation between signals of the acoustoelectric transducer and of the pickup device. The signal processing device adjusts a mixing ratio of the signals in the output signal depending on the correlation.

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.