Eberhard-karls-universitaet Tuebingen Universitaetsklinikum

Eberhard Karls Universitat Tubingen Medizinische F Akultat

Eberhard Karls Universitaet Tuebingen Medizinizche Fakultaet Geschwister-scholl-platz

Hans-Peter Zenner

Ernst Dalhoff

Erich Goll

In a hearing aid () that can be inserted into the ear canal () of a patient, comprising an actuator () effecting a mechanical stimulation of the tympanic membrane (), the actuator () comprises an inner surface () associated with the tympanic membrane () and an outer surface () associated with the ear canal () and is configured as an areal disk actuator, whose deformation stimulates the tympanic membrane () by areal deformation. On the actuator () at a distance from the outer surface () a cover plate () is arranged which together with the outer surface () delimits a preferably lenticular cavity ().

Hearing aid that can be introduced into the auditory canal and hearing aid system

In a hearing aid having a microphone to be arranged at a body of a user for capturing ambient sound, a loudspeaker for outputting the ambient sound after having been amplified on a frequency-dependent basis, and a signal processor, the signal processor is configured to amplify the sound such that the amplified sound is audible to the user, and to automatically re-adjust the gain by the following steps: selecting a tone having a specific frequency; outputting the tone and the amplified ambient sound via the loudspeaker as an output sound; capturing via said microphone an analysis sound composed of ambient sound and of a reflection of said output sound; extracting a reflection of the tone from the captured analysis sound; and determining a reflection component for the specific frequency of the tone; adjusting the gain in frequency-specific manner and based on the determined reflection component.

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Tubingen, Germany

Hans-Peter Zenner