Single Channel Speech Enhancement Techniques in Spectral Domain

Table 1

Instantaneous shape parameter functions 𝑅^𝜇𝑘(n) and 𝑅^𝜈𝑘(n).

SNR range [dB]	𝑅^𝜇𝑘(𝑛)=𝐹[𝑎0𝑃𝑘(𝑛)+𝑏0]		𝑅^𝜈𝑘(𝑛)=𝐹[𝑐0𝑃𝑘(𝑛)+𝑑0]
	𝑎0	𝑏0	𝑐0	𝑑0
𝑃𝑘(𝑛)≤20	−0.087	3.50	0.060	−1.04
20<𝑃𝑘(𝑛)≤33	0.045	0.84	0.060	−1.04
33<𝑃𝑘(𝑛)≤49	−0.079	4.90	−0.035	2.11
49<𝑃𝑘(𝑛)≤65	−0.011	1.60	0.039	−1.56
65<𝑃𝑘(𝑛)	−0.074	5.60	0	1.00