发明名称 |
METHOD AND DEVICE FOR SUPPRESSING FEEDBACK |
摘要 |
A method and an apparatus reduce feedback in a hearing aid device. The method includes the step of acquiring a first feedback transfer function at a first point in time on a feedback path from a signal processing device via an electro-acoustic transducer, an acoustic signal path from the electro-acoustic transducer to an acousto-electric transducer and via the acousto-electric transducer back to the signal processing device. In a further step, a weighted mean value function is determined in a manner dependent on amplitude absolute values of the first feedback transfer function. A second feedback transfer function is estimated by an adaptive filter, wherein coefficients of the adaptive filter are determined in a manner dependent on the weighted mean value function. The adaptive filter is applied to a signal which is derived from an acoustic input signal of the acousto-electric transducer. |
申请公布号 |
EP2981099(A3) |
申请公布日期 |
2016.03.16 |
申请号 |
EP20150178938 |
申请日期 |
2015.07.29 |
申请人 |
SIVANTOS PTE. LTD. |
发明人 |
ROSENKRANZ, TOBIAS DANIEL;PUDER, HENNING;WURZBACHER, TOBIAS |
分类号 |
H04R25/00 |
主分类号 |
H04R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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