IMPROVED FEEDBACK ELIMINATION IN A HEARING AID

A hearing aid (HA) configured to be worn by a hearing aid user at or in an ear of the hearing aid user or to be fully or partially implanted in the head at an ear of a hearing aid user is provided. The hearing aid comprising an input unit (IT), an output unit (OT), a signal processing unit (SPU) con...

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Bibliographische Detailangaben
Hauptverfasser: FARMANI, Mojtaba, GUO, Meng, GRØNBECH, Mikkel, SREEPADARAO, Sudershan Yalgalwadi, KUENZLE, Bernhard, PETERSEN, Kim Tilgaard, MENG, Anders, KURIGER, Martin
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A hearing aid (HA) configured to be worn by a hearing aid user at or in an ear of the hearing aid user or to be fully or partially implanted in the head at an ear of a hearing aid user is provided. The hearing aid comprising an input unit (IT), an output unit (OT), a signal processing unit (SPU) connected to the said input unit and output unit, where the input unit (IT), the signal processing unit (SPU) and the output unit (OT) are forming part of a forward path of the hearing aid, where the signal processing unit (SPU) being configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom, where the hearing aid (HA) further comprising a feedback reduction unit (FBRU) configured to reducing a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path (FBP) from the output unit (OT) to the input unit (IT) of said hearing aid (HA), where the feedback reduction unit (FBRU) is configured to modulate said forward gain in time to provide that the forward gain exhibits an increased or unchanged forward gain AH in one or more first time periods TH and a reduced forward gain AL in one or more second time periods TL, and where the hearing aid (HA) further comprises a filler signal unit (FU) configured to generate a filler signal (FS), and to provide said filler signal (FS) to the resulting signal (OUT) of the feedback reduction unit (FBRU) in said one or more second time periods TL, corresponding to said reduced forward gain AL.