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A unification of adaptive multi-microphone noise reduction systems
- Author(s)
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- Ann Spriet, (K.U. Leuven)
- Simon Doclo, (K.U. Leuven)
- Marc Moonen, (K.U. Leuven)
- Jan Wouters, (K.U. Leuven)
- Topics
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- Microphone arrays and array signal processing
- Noise reduction techniques
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Abstract
In this paper a general cost function for adaptive multi-microphone noise reduction is proposed. From this cost function, many existing adaptive multi-microphone noise reduction techniques can be derived, such as linearly constrained minimum variance (LCMV) beamforming, transfer-function LCMV, soft-constrained beamforming and speech-distortion weighted multi-channel Wiener filtering as well as combined approaches.
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