Output SNR analysis of integrated active noise control and noise reduction in hearing aids under a single speech source scenario

Authors:
Romain Serizel;Marc Moonen;Jan Wouters;Søren Holdt Jensen
Affiliations:
Department of Electrical Engineering, Katholieke Universiteit Leuven, ESAT-SCD, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium;Department of Electrical Engineering, Katholieke Universiteit Leuven, ESAT-SCD, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium;Division of Experimental Otorhinolaryngology, Katholieke Universiteit Leuven, ExpORL, O.& N2, Herestraat 49/721, B-3000 Leuven, Belgium;Department of Electronic Systems, Aalborg University, Niels Jernes Vej 12, DK-9220 Aalborg, Denmark
Venue:
Signal Processing
Year:
2011

Citing 3
Cited 1

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Speech Communication
Theoretical analysis of binaural multimicrophone noise reduction techniques

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Integrated active noise control and noise reduction in hearing aids

IEEE Transactions on Audio, Speech, and Language Processing

A speech distortion weighting based approach to integrated active noise control and noise reduction in hearing aids

Signal Processing

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Abstract

This paper analyses the output signal-to-noise ratio for a standard noise reduction scheme based on the multichannel Wiener filter and for an integrated active noise control and noise reduction scheme based on the filtered-X multichannel Wiener filter, both applied in a hearing aid framework that includes the effects of signal leakage through an open fitting and secondary path effects. In previous work, integrating noise reduction and active noise control has been shown to allow to compensate for effects of signal leakage and secondary path effects. These experimental results are now verified theoretically. The output signal-to-noise ratios are derived under a single speech source scenario. Theoretical results are then compared to simulations for a single noise source scenario and a multiple noise sources scenario.