Multi-Microphone Speech Enhancement - =1=Using LCMV ...
Multi-Microphone Speech Enhancement - =1=Using LCMV ...
Multi-Microphone Speech Enhancement - =1=Using LCMV ...
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<strong>LCMV</strong> Beamformer<br />
The GSC Implementation<br />
The Generalized Sidelobe Canceller Implementation<br />
w 2<br />
Split the Beamformer<br />
w = w 0 − w n<br />
w n B H q<br />
Constraints Subspace<br />
w 0 ∈ Span{C}<br />
Null Subspace<br />
(columns of B span N {C})<br />
w n = −Bq<br />
w new<br />
w old<br />
w 1<br />
w 0<br />
Constraint plane<br />
Constraint subspace<br />
S. Gannot (BIU) <strong>Multi</strong>-<strong>Microphone</strong> <strong>Speech</strong> <strong>Enhancement</strong> IWAENC 2012 11 / 53
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