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HEARING DEVICE COMPRISING AN ANTI-FEEDBACK POWER DOWN DETECTOR

机译:包含抗反馈断电检测器的听力设备

摘要

The application relates to a hearing device comprising a) a forward path between an input transducer for converting an input sound to an electric input signal and an output transducer for converting an electric output signal to an output sound, the forward path comprising a signal processing unit for applying a level and/or frequency dependent gain to the electric input signal or a signal originating therefrom and for providing a processed signal, and feeding the processed signal or a signal originating therefrom to the output transducer, an acoustic feedback path being defined from said output transducer to said input transducer; b) a configurable anti-feedback system comprising a feedback estimation unit for providing an estimate of said acoustic feedback path; c) a number of detectors, each providing a detector signal for characterizing a signal of the forward path. The object of the present application is to save power in a hearing device. The problem is solved in that the hearing device further comprises an activation control unit configured to control the anti-feedback system based on said detector signals, and to bring the anti-feedback system into one of at least two predefined modes based on said detector signals, said at least two predefined modes comprising an ON-mode and an OFF-mode. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, or similar portable devices, where a need for feedback cancellation and low power consumption is important.
机译:本申请涉及一种听力装置,包括:a)在用于将输入声音转换为电输入信号的输入换能器与用于将电输出信号转换为输出声音的输出换能器之间的前向路径,该前向路径包括信号处理单元。用于将电平和/或频率相关的增益施加到电输入信号或源自电输入信号的信号并用于提供经处理的信号,以及将经处理的信号或源自电输入信号的信号馈送到输出换能器,从所述声换能器定义声反馈路径输出换能器至所述输入换能器; b)可配置的抗反馈系统,其包括用于提供所述声反馈路径的估计的反馈估计单元; c)多个检测器,每个检测器提供用于表征前向路径信号的检测器信号。本申请的目的是节省助听器中的功率。解决了该问题,因为听力设备还包括激活控制单元,该激活控制单元被配置为基于所述检测器信号来控制防反馈系统,并且基于所述检测器信号使防反馈系统进入至少两个预定模式之一。 ,所述至少两个预定义模式包括开模式和关模式。本发明可以例如是。可用于助听器,头戴式耳机,耳机,有源护耳系统或类似的便携式设备,在这些场合中,需要消除反馈和降低功耗非常重要。

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