Manner and treatment unit and the hearing aid system null aural signal for the be adapted swish suppression

摘要

Is to provide a process of suppressing unit adaptively wind noise in hearing aids. The processing unit (100) comprises second microphone microphone and the first (105) and (106). Converted digital signal to the first (107) A / D converter in a first (113), the analog signal from the second microphone, the analog signal from the microphone of the first, A / D of the second it is converted digital signal to the second (108) converter in (114). The output of the A / D converter of the first, is connected to a first input of the subtraction node (111) as operation. The output of the A / D converter and the second is connected to the input of the adaptive filter (109) as operation. The output of the adaptive filter (109) is branched, the first branch is connected to a second input of the (111) subtracts the node as the operation, the second branch to the input of the signal processing of the remainder of the hearing aid operation are connected. Subtraction output node (111) is connected to the control input of the adaptive filter (109) as operation. The present invention relates to a method for adaptive wind noise in hearing aids and hearing aid system system having a processing unit such.