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In this paper, two array signal processing techniques are combined with independent component analysis (ICA) to enhance the performance of blind separation of acoustic signals in a reflective environment. The first technique is the subspace method which reduces the effect of room reflection when the system is used in a room. Room reflection is one of the biggest problems in blind source separation (BSS) in acoustic environments. The second technique is a method of solving permutation. Fordoi:10.1109/tsa.2003.809191 fatcat:ddtc2ekpwvgpljpzlqu2omozhe