Table 1.

Comparison of DNN-based ratio masking (the baseline) with ASNA-NMF in terms of STOI (in %) for six noises at −5 dB.

Noise	SCAFE	DLIVING	OMEETING	PCAFETER	NPARK	TMETRO	Average
Method
Unprocessed	64.1	79.3	67.8	62.5	67.7	77.5	69.8
ASNA-NMF	67.5	82.4	73.4	66.0	72.5	81.2	73.8
DNN-IRM	73.7	87.5	80.0	71.4	80.2	85.9	79.8