Hearing aid comprising a feedback alarm

摘要

A hearing aid comprises a microphone configured to receive an acoustic input signal and convert the signal into an electric input signal, an audiological signal processing unit coupled to the microphone and configured to process the electric input signal to a processed signal, an amplifier coupled to the audiological signal processing unit and configured to amplify the processed signal to an amplified signal, and a receiver coupled to the amplifier and configured to transform the amplified signal into an acoustic output signal. The hearing aid further comprises a howl detector coupled to the signal processing unit and configured to detect the presence of a feedback howl originating from the hearing aid an analyzer coupled to the howl detector and configured to determine a value indicative of whether the feedback howl detected is potentially audible to a person neighboring the user of the hearing aid.

主权项

1. A hearing aid, comprising:
a microphone configured to receive an acoustic input signal and to convert the acoustic input signal into an electric input signal; an audiological signal processing unit coupled to the microphone and being configured to process the electric input signal to a processed signal; an amplifier coupled to the audiological signal processing unit and being configured to amplify the processed signal to an amplified signal; a receiver coupled to the amplifier and being configured to transform the amplified signal into an acoustic output signal; a howl detector coupled to the signal processing unit and being configured to detect the presence of a feedback howl originating from the hearing aid; an analyzer coupled to the howl detector and being configured to determine a first value indicative of whether or not the feedback howl detected is potentially audible to a person neighbouring a user of the hearing aid; and a trigger unit operatively connected to the analyzer and being configured to trigger a corrective action considering the first value, wherein the first value is indicative of whether or not the feedback howl detected is potentially audible to the person neighbouring the user of the hearing aid and comprises an estimate of the sound pressure level SPLhowl from the feedback howl in the hearing aid worn by the user at a distance DIST within the user's nearest environment.