Multi-Microphone Noise Reduction by Post-Filter and Superdirective Beamformer

Authors: J. Bitzer, K.U. Simmer, K.-D. Kammeyer
Abstract: In this contribution a new noise reduction scheme for multi-microphone speech enhancement, called Adaptive Post-filter Extension for Superdirective beamformers (APES), will be introduced, The combination of the superdirective beamformer and the adaptive post-filter has a great potential to suppress diffuse noise. It also outperforms all related algorithms in terms of noise reduction, without increasing signal cancellation. Additionally, a new and easy-to-implement estimator of the post-filter transfer function will be given.

Document type: Conference Paper
Publication: Pocono Manor, USA, 27. - 30. September 1999
Conference: International Workshop on Acoustic Echo and Noise Control (IWAENC 99)
Pages: 100-103
Index: 56
IWAENC_1999_bitzer.pdf162 KB
Last change on 29.04.2008 by C. Bockelmann
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