公开(公告)号：US10484800B2

公开(公告)日：2019-11-19

申请号：US15601521

申请日：2017-05-22

Applicant: Oticon A/S

Inventor： Jan Mark De Haan ,  Fares El-Azm

IPC: H04R25/00

Abstract: The application relates to a hearing aid comprising a forward path comprising a) a multitude of input units for providing a multitude of electric input signals INi, i=1, . . . , M, representative of sound, b) a multi input beam former filtering unit for providing a beam formed signal YBF from said multitude of electric input signals, c) a gain unit for applying a hearing aid gain GHA to said beam formed signal YBF, and providing a processed signal, and d) an output unit for providing stimuli perceivable by a user as sound based on said processed signal or a signal derived therefrom. The hearing aid further comprises e) a gain control unit for limiting said hearing aid gain GHA to a modified full-on gain value G′FOG. The multi input beam former filtering unit is configured to apply a current frequency dependent directional gain GDIR,i to each of said multitude of electric input signals INi, and the gain control unit is configured to determine the modified full-on gain value G′FOG in dependence of said current directional gains GDIR,i, i=1, . . . , M, and a previously determined full-on gain value GFOG. Thereby an improved hearing aid is provided. The invention may e.g. be used for hearing instruments, headsets, or active ear protection systems.

公开(公告)号：US10321243B2

公开(公告)日：2019-06-11

申请号：US15608447

申请日：2017-05-30

Applicant: Oticon A/S

Inventor： Jan Mark De Haan ,  Fares El-Azm

IPC: H04R25/00 ,  G10L19/025

Abstract: A hearing device comprises A) a forward path, comprising a1) an input unit for providing a time-domain electric input signal as digital samples, a2) an analysis filter bank configured to provide a time-frequency representation of said electric input signal, a3) a signal processing unit for processing a signal of the forward path and providing a number of processed channel-signals, B) an onset detector configured to receive said time-domain electric input signal before entering said analysis filter bank, and to provide an onset control signal dependent on a current first order derivative of an envelope thereof, C) a level estimation unit for estimating a current level of said frequency sub-band signals, and comprising c1) a level adjustment unit configured to adjust the current levels of said frequency sub-band signals, and to control said level adjustment in dependence of said onset control signal. The invention may be used in audio devices, e.g. hearing aids.