Hörgerät mit verbesserter Kompression

Details

Veröffentlichungs-Nr.

EP2658120

Aktenzeichen

EP12165500

Anmeldetag

25. April 2012

Veröffentlichung

13. April 2016

Erteilung

13. April 2016

Rechtsraum

EP

IPC

H03G7/00H04R25/00

Abstract

A hearing aid is provided, comprising a microphone for conversion of acoustic sound into an input audio signal; a signal processor for processing the input audio signal for generation of an output audio signal; and a transducer for conversion of the output audio signal into a signal to be received by a human; wherein the signal processor includes a compressor with a compressor input/output rule that is adjustable in response to a signal level of the input audio signal, whereby the input/output rule is adjusted in response to the estimated signal dynamic range. If the amplified signal fits within the listener's available auditory dynamic range, then the input/output rule stays constant. If the average level of the speech minima drops below the impaired auditory threshold, the input/output rule is modified to provide more low-level gain. If the amplified signal peaks exceed the loudness discomfort level (LDL), the gain is reduced. When compression is needed to reduce the signal dynamic range to fit within the listener's available auditory dynamic range, the compression ratio used is the smallest that can accomplish this goal.

Anmelder

Firma

GN ReSound A/S

Land

🇩🇰 Dänemark

Fachgebiete