An improved array steering vector estimation method and its application in speech enhancement
EURASIP Journal on Applied Signal Processing
New insights into the MVDR beamformer in room acoustics
IEEE Transactions on Audio, Speech, and Language Processing
Hi-index | 0.00 |
This report describes microphone arrays and parallel signal processing for high-quality sound capture in noisy, reverberant enclosures. The technique incorporates matched-filtering of individual sensors and parallel processing to provide spatial volume selectivity that mitigates effects of noise interference and multipath distortion. Truncated causal approximations to ideal matched-filters and arrays composed of randomly distributed transducers reduce complexity and improve the quality of sound capture. The method outperforms traditional delay-and-sum beamformers which provide only directional selectivity.