Table 2. STOI (in%) in matched test scores.

Noise	Algorithm	-5dB	0dB	5dB	Avg
Airport Noise	Noisy (UnP)	62.4	73.7	83.9	73.3
	DNN-IRM	80.2	86.5	90.7	85.8
	LSTM-IRM	82.9	88.6	92.3	87.9
	LSTM-KF	74.2	80.3	82.8	79.1
	FDNN-KF	72.2	79.8	81.3	77.8
	DeepXi-KF	75.9	81.2	84.7	80.6
	DeepResGRU-KF	76.6	82.3	85.5	81.1
	Proposed	85.6	90.5	94.0	90.0
Babble Noise	Noisy (UnP)	56.7	68.1	79.6	68.1
	DNN-IRM	72.0	79.3	85.9	79.0
	LSTM-IRM	75.9	82.6	87.0	81.8
	LSTM-KF	74.1	80.1	82.7	79.2
	FDNN-KF	72.3	79.6	81.1	78.0
	DeepXi-KF	75.8	81.3	84.8	80.7
	DeepResGRU-KF	76.5	82.4	85.6	81.2
	Proposed	79.8	85.2	89.2	84.7
Car Noise	Noisy (UnP)	58.8	68.9	79.6	69.1
	DNN-IRM	73.7	81.0	86.0	80.2
	LSTM-IRM	78.5	84.7	89.1	84.1
	LSTM-KF	78.3	83.2	87.6	83.0
	FDNN-KF	75.4	80.4	83.3	79.7
	DeepXi-KF	80.1	85.6	89.0	84.9
	DeepResGRU-KF	82.2	86.8	91.2	86.7
	Proposed	83.4	88.5	92.6	88.2
Factory Noise	Noisy (UnP)	56.4	67.4	78.8	67.5
	DNN-IRM	70.2	78.7	85.2	78.0
	LSTM-IRM	74.4	80.2	88.1	80.9
	LSTM-KF	74.1	78.5	83.6	78.7
	FDNN-KF	70.7	76.2	81.4	76.1
	DeepXi-KF	77.2	79.8	85.4	80.8
	DeepResGRU-KF	79.1	81.2	86.5	82.2
	Proposed	78.6	82.1	90.0	83.6
Street Noise	Noisy (UnP)	63.0	74.0	84.0	73.7
	DNN-IRM	78.4	85.3	90.3	84.6
	LSTM-IRM	82.0	86.8	91.8	87.9
	LSTM-KF	74.8	82.9	86.6	83.0
	FDNN-KF	70.8	79.8	83.3	79.7
	DeepXi-KF	78.3	84.9	89.0	84.9
	DeepResGRU-KF	80.1	85.6	91.2	86.7
	Proposed	84.9	89.7	93.4	89.3