[Retracted] Research and DSP Implementation of Speech Enhancement Technology Based on Dynamic Mixed Features and Adaptive Mask

Table 1

Average Perceptual Evaluation of Speech Quality (PESQ).

Noise	Signal-to-noise ratio (dB)	SRNN	SRU	GRU	CGRU
factory2	−5	2.346	2.515	2.426	2.495
	0	2.651	2.806	2.729	2.843
	5	2.877	3.102	3.065	3.127
buccaneer1	−5	1.861	1.952	1.763	1.952
	0	2.240	2.333	2.201	2.347
	5	2.533	2.654	2.587	2.668
destroyerengine	−5	1.903	2.030	2.106	2.228
	0	2.212	2.296	2.240	2.329
	5	2.521	2.578	2.526	2.600
hfchannel	−5	1.801	1.952	1.706	1.835
	0	2.157	2.177	2.111	2.285
	5	2.469	2.513	2.502	2.599