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Process_DSB.m
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Process_DSB.m
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function [Y,W,SetupStruc] = Process_DSB(s,Transfer,SetupStruc)
K = SetupStruc.DSB.K;
hop = SetupStruc.DSB.hop;
win = hanning(K,'periodic');
win = win/sqrt(sum(win(1:hop:K).^2));
SetupStruc.DSB.win = win; % Preserve 'win' in 'SetupStruc'
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
N = size(s,2);
for i = 1:N
X(:,:,i) = fft(enframe(s(:,i),win,hop)');
end
frame_N = size(X,2);
K_m = K/2+1;
Num = size(Transfer,3);
Y = zeros((frame_N-1)*hop+K,Num);
Y_f = zeros(size(X,1),size(X,2),Num);
%%%%%%%%%%%%%%%%%%%%%%%%%% Obtain processing matrix 'W'
W = conj(permute(Transfer,[3 2 1]))/N;
for i = 2:K_m
X_f = permute(X(i,:,:),[3 2 1]);
W_f = permute(W(:,:,i),[1 2 3]);
Y_ = W_f*X_f;
Y_f(i,:,:) = Y_.';
if(i~=K_m)
Y_f(K+2-i,:,:) = Y_';
end
end
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Recover signals
if(K/hop==2)
win = ones(K,1);
end
for i = 1:Num
Y(:,i) = overlapadd(real(ifft(Y_f(:,:,i)))',win,hop);
end
return;