Combined noise suppression system for monaural cochlear implants
نویسندگان
چکیده
This contribution is devoted to the noise suppression system for monoaural SPEAK-type cochlear implants. The system is based on the combination of the superdirective two-microphone array and the noise suppression post-processing, both implemented in the frequency domain. The relative insensitivity of the two-microphone superdirective system to the spectral magnitude di erences in both channels enables the two-channel noise suppression post-processing. The new criterion originating from the SPEAK coding strategy is used for the evaluation of the whole system.
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تاریخ انتشار 1999