Single Channel Speech Enhancement Techniques in Spectral Domain

Table 2

Objective evaluation results for noisy signal with SNR = 0 dB.

	𝑆	𝑊	𝐿	𝐴
SNR [dB]	6.8	14.5	12.7	14.8
LR	141.8	29.0	27.9	7.0

S: spectral subtraction in (6), W: Wiener filter in (10), L: Lotter’s spectral gain in (22), A: adaptive PDF in (25).