TABLE VIII.

PESQ scores for different two-stage and single-stage DFNs, LSTMs and BLSTMs in recorded reverberant conditions.

T60 (s)		0.32		0.47		0.68		0.89
TIR (dB)		−12	−6	−12	−6	−12	−6	−12	−6	Average
Unprocessed		1.37	1.55	1.35	1.46	1.37	1.52	1.45	1.54	1.45
DFN	Single-stage Mapping	1.77	2.04	1.69	1.98	1.68	1.95	1.62	1.87	1.82
	Single-stage Masking	1.98	2.31	1.86	2.18	1.87	2.20	1.76	2.05	2.03
	Mapping+Mapping	1.82	2.07	1.76	2.03	1.76	2.04	1.67	1.92	1.88
	Mapping+Masking	1.99	2.30	1.87	2.17	1.88	2.20	1.78	2.05	2.03
	Masking+Mapping	1.90	2.16	1.83	2.12	1.86	2.14	1.76	2.00	1.97
	Masking+Masking	2.06*	2.38*	1.93*	2.25*	1.96*	2.30*	1.82*	2.11*	2.10*
LSTM	Single-stage Mapping	1.91	2.14	1.87	2.12	1.90	2.14	1.80	2.03	1.99
	Single-stage Masking	2.12	2.42	2.01	2.32	2.04	2.35	1.91	2.19	2.17
	Mapping+Mapping	1.89	2.11	1.85	2.11	1.89	2.14	1.80	2.01	1.97
	Mapping+Masking	2.08	2.37	1.97	2.27	2.01	2.31	1.89	2.16	2.13
	Masking+Mapping	1.96	2.20	1.92	2.19	1.95	2.21	1.84	2.07	2.04
	Masking+Masking	2.14	2.45	2.03	2.35*	2.06	2.38*	1.93	2.22	2.19
BLSTM	Single-stage Mapping	2.01	2.22	1.96	2.21	1.97	2.21	1.86	2.09	2.07
	Single-stage Masking	2.19	2.48	2.08	2.37	2.09	2.38	1.98	2.26	2.23
	Mapping+Mapping	2.03	2.27	1.97	2.24	1.97	2.27	1.86	2.08	2.09
	Mapping+Masking	2.16	2.49*	2.05	2.39*	2.10	2.42*	1.95	2.24	2.22
	Masking+Mapping	2.13	2.36	2.05	2.32	2.07	2.34	1.94	2.18	2.17
	Masking+Masking	2.23*	2.53*	2.12*	2.43*	2.15*	2.46*	2.01	2.29*	2.28*