Robust, time-variant design of MVDR Beamformers

Authors:

Abstract:

In this contribution, we show a noise estimation procedure in order to design an adaptive Minimum Variance Distortionless Response (MVDR)-Beamformer in the frequency domain. This new algo-rithm uses a multi-channel minimum statistic algorithm. This leads to a very robust implementation that outperform ideal Voice Activ-ity Detection (VAD) based algorithms in a non-stationary environ-ment.

Document type:

Conference Paper

Publication:

Aachen, Germany, 18. - 20. March 2003

Conference:

29. Jahrestagung für Akustik (DAGA 03)

Index:

210

Files:

Paper