Multi-Microphone Speech Enhancement - =1=Using LCMV ...

Problem Formulation
Problem Formulation in the STFT Domain
Microphone Signals (m = 1, . . . , M):
N d
∑
z m (l, k) = sj d (l, k)hjm(l, d k)
N i
Vector Formulation
j=1
∑
∑N n
+ sj i (l, k)hjm(l, i k) + sj n (l, k)hjm(k) n + n m (l, k)
j=1
j=1
z(l, k) = H d (l, k)s d (l, k) + H i (k)s i (l, k) + H n (l, k)s n (l, k) + n(l, k)
} {{ }
v(l,k); stationary component
N = N d + N i + N n
≤ M
S. Gannot (BIU) Multi-Microphone Speech Enhancement IWAENC 2012 7 / 53