Sixth European Conference on Speech Communication and Technology
(EUROSPEECH'99)

Budapest, Hungary
September 5-9, 1999

Combined Noise Suppression System for Monaural Cochlear Implants

Milan Svoboda, Pavel Sovka, Petr Pollák

Czech Technical University in Prague, Praha, Czech Republic

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 differences 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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Bibliographic reference.  Svoboda, Milan / Sovka, Pavel / Pollák, Petr (1999): "Combined noise suppression system for monaural cochlear implants", In EUROSPEECH'99, 2635-2638.