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公开(公告)号：US09204225B2
公开(公告)日：2015-12-01
申请号：US13466559
申请日：2012-05-08
CPC分类号： H04R25/30 , G10K11/004 , G10K11/04 , G10K11/22 , H03H9/38 , H04R25/453 , H04R25/70
摘要： A test system for evaluates acoustic feedback characteristics of a listening device by changing the transfer function of the signal path from an acoustic output to an acoustic input of the listening device. A variable filter comprises an acoustic input, an acoustic output, and a control unit for changing a transfer function of the filter. First and/or second acoustic propagation elements propagate acoustic sound, the first acoustic propagation element acoustically connecting the acoustic output of the listening device with the acoustic input of the variable filter, the second acoustic propagation element acoustically connecting the acoustic output of the variable filter with the acoustic input of the listening device; wherein the system is configured to allow a determination of acoustic feedback or a level of acoustic feedback of the listening device at different frequencies.
摘要翻译： 一种用于通过改变信号路径从声输出到听音装置的声输入的传递函数来评估听音装置的声反馈特性的测试系统。 可变滤波器包括声输入，声输出和用于改变滤波器的传递函数的控制单元。 第一和/或第二声传播元件传播声音，第一声传播元件将听音装置的声输出声学连接到可变滤波器的声输入，第二声传播元件将声可变滤波器的声输出与 听音装置的声音输入; 其中所述系统被配置为允许在不同频率处确定所述聆听装置的声反馈或声反馈的水平。
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2.发明授权公开(公告)号：US08442247B2
公开(公告)日：2013-05-14
申请号：US12332103
申请日：2008-12-10
申请人： Jesko Lamm , Lukas Maurer , Michael Ernst , Sarah Bostock
发明人： Jesko Lamm , Lukas Maurer , Michael Ernst , Sarah Bostock
IPC分类号： H04R25/00
CPC分类号： H04R25/70 , H04R25/453 , H04R25/505 , H04R25/558 , H04R2225/41
摘要： The invention relates to a hearing aid system comprising an input transducer for converting an input sound signal comprising an information signal part of a known waveform and a background noise part to an electrical analogue input signal, optionally an A/D converter for converting the electrical input signal to a digital input signal. The invention further relates to a method of making a critical gain measurement. The object of the present invention is to improve the signal-to-noise ratio of a signal to be measured or detected in a hearing instrument compared to prior art solutions. The problem is solved in that a matched filter receiving said analogue or digital input signal and optimized to improve the identification of the information signal part from the noisy input signal. An advantage of the invention is that it provides an alternative scheme for improving signal to noise ratio of a hearing aid. The invention may e.g. be used for the customization of hearing aid parameters in cooperation with fitting software and/or for improving signal to noise ratio of a detected or measured signal.
摘要翻译： 本发明涉及助听器系统，该助听器系统包括输入换能器，用于将包括已知波形和背景噪声部分的信息信号部分的输入声音信号转换成电模拟输入信号，可选地，A / D转换器用于将电输入 信号到数字输入信号。 本发明还涉及一种进行临界增益测量的方法。 本发明的目的是提高与现有技术方案相比，在听力仪器中要测量或检测的信号的信噪比。 解决的问题是，接收所述模拟或数字输入信号并被优化以改善来自噪声输入信号的信息信号部分的识别的匹配滤波器。 本发明的优点在于它提供了用于提高助听器的信噪比的替代方案。 本发明可以例如 用于与配合软件和/或用于提高检测或测量信号的信噪比的协调来定制助听器参数。
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