Comparative Evaluation of Single-Channel MMSE-Based Noise Reduction Schemes for Speech Recognition

Table 5

Results of cepstral domain algorithms on AURORA4.

	Set 01		Set 02–07		Set 08		Set 09–14		Average
	C	M	C	M	C	M	C	M	C	M
C-LSA	86.59	76.17	52.95	67.86	71.95	72.67	39.06	58.76	50.75	64.90
C-LSA + gSNR	88.91	80.66	58.09	73.58	79.40	78.16	46.07	66.18	56.66	71.24
C-LSA + 𝐺smooth	86.63	76.65	54.26	68.72	72.96	73.52	40.63	59.88	52.07	65.84
C-OMLSA	89.58	83.35	55.64	74.86	77.13	80.74	43.51	67.77	54.40	72.84
C-OMLSA + gSNR	89.72	84.35	55.16	74.82	77.24	81.03	43.17	67.83	54.07	72.95
C-OMLSA + 𝐺smooth	89.65	83.54	55.74	74.97	76.91	80.44	43.58	67.79	54.46	72.90