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Table 3 Number of operations per output frame for the DFHMM, Roweis, MIXMAX, and the iterative separation by Hu and Wang (with I iterations)

From: Single microphone speech separation by diffusion-based HMM estimation

Algorithm Additions Multiplications LUT indexing
DFHMM L(d+D+1)+2S 2(D 2+D) L(d+1)+D(L+2S 2+D) L
Roweis S 2(d 2+d+1) S 2(d 2+d)
MIXMAX 3d S 2 2d S 2
Hu and Wang (6d+W+2)S 2 I (3d+W+1)S 2 I+d S I 2d S I