| 摘要 |
<p>The invention relates to an at least partially implantable hearing assistance system, comprising an audio signal source (20, 120), an audio signal processing unit (40, 140) for processing audio signals from the audio signal source, an implantable output transducer (12) for stimulating a user's hearing according to the processed audio signals, a hermetically sealed gas-filled chamber (44, 90) forming part of said output transducer or forming part of an microphone as said audio signal source, a barometric pressure sensor (26) for sensing the presently prevailing atmospheric pressure, and a correction signal unit (28) for generating a correction signal as a predetermined function of the sensed atmospheric pressure, wherein said correction signal is adapted to be used by a pressure compensation element (40, 62, 140) of the system for adjusting the system gain in a manner so as to compensate for the impact of deviations of the atmospheric pressure from a reference value on the compliance of said gas-filled chamber.</p> |
