Cochlear implant
A technology of cochlear implants and microphones, applied in ear therapy, medical science, speech analysis, etc., to avoid adverse effects and reduce algorithm complexity
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[0033] Example
[0034] This embodiment provides a dual-channel microphone voice noise reduction processing method, such as Figure 2a with Figure 2b As shown, the dual-channel microphone speech noise reduction processing method includes:
[0035] Perform A / D sampling on the two original voice signals received by the two microphones to obtain the first digital voice data s_1(n) output by the microphone before n time and the second digital voice data v_1(n) output by the rear microphone . Among them, the A / D sampling rate can be preferably set to 16kHz. The sound tubes of the front microphone and the rear microphone have different directions. The two microphones can be both condenser microphones, or other types of microphones such as MEMS microphones; the models of the two microphones can be the same or different; when the microphone models are the same, the two microphones can be both omnidirectional microphones; When the microphone models are different, the two microphones can...
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