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Method and processing unit for adaptive wind noise suppression in a hearing aid system and a hearing aid system
Method and processing unit for adaptive wind noise suppression in a hearing aid system and a hearing aid system
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机译:用于助听器系统中的自适应风噪声抑制的方法和处理单元以及助听器系统
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摘要
A processing unit that adaptively suppresses wind noise in a hearing aid is provided. The processing unit (100) comprises a first microphone (105) and a second microphone (106). The analog signal from the first microphone is converted to a first digital signal (107) in a first A/D converter (113) and the analog signal from the second microphone is converted to a second digital signal (108) in a second A/D converter (114). The output of the first A/D converter is operationally connected to a first input of a subtraction node (111). The output of the second A/D converter is operationally connected to the input of an adaptive filter (109). The output of the adaptive filter (109) is branched and in a first branch operationally connected to the second input of the subtraction node (111) and in a second branch operationally connected to the input of the remaining signal processing in the hearing aid. The output from the subtraction node (111) is operationally connected to a control input of the adaptive filter (109). The invention also relates to a hearing aid system having such a processing unit and a method of adaptive wind noise suppression in a hearing aid system.
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