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

Table 3

Results of cepstral domain algorithms on AURORA2.

	Test A		Test B		Test C		A-B-C AVG
	C	M	C	M	C	M	C	M
C-LSA	75.68	87.81	77.06	86.85	76.94	89.25	76.56	87.97
C-LSA + gSNR	75.17	89.42	77.44	88.95	75.82	90.04	76.14	89.47
C-LSA + 𝐺smooth	76.37	88.23	77.74	87.06	77.30	89.38	77.14	88.22
C-OMLSA	72.69	89.00	75.85	88.60	73.62	90.28	74.05	89.29
C-OMLSA + gSNR	70.67	89.72	74.19	89.61	71.26	90.64	72.04	89.99
C-OMLSA + 𝐺smooth	72.86	89.09	76.06	88.71	73.69	90.42	74.20	89.41