A Diversity Preprocessor for the Multichannel Wiener Filter

Konferenz: Sprachkommunikation 2010 - 9. ITG-Fachtagung
06.10.2010 - 08.10.2010 in Bochum, Deutschland

Tagungsband: Sprachkommunikation 2010

Seiten: 4Sprache: EnglischTyp: PDF

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Stenzel, Sebastian; Freudenberger, Jürgen (Department of Computer Science, University of Applied Sciences Constance, Germany)

In this paper a microphone combining system for speech enhancement is proposed, where the microphones are placed under diversity conditions. Therefore a Spectral Combiner and a Coherence Blocking Matrix are applied as preprocessing units to the Multichannel Wiener Filter. With the proposed system it is possible to combine speech signals received at several microphone positions with different signal conditions. The system enhances the use of the Multichannel Wiener Filter approach with distributed microphones, which are placed under diversity conditions.