Table 4 Increment of SNR in different noise environments (dB)
From: Single-channel speech enhancement based on joint constrained dictionary learning
Noise type | Algorithm | SNR/dB | ||||
|---|---|---|---|---|---|---|
− 10 | − 5 | 0 | 5 | 10 | ||
Volvo | K-SVDM | 6.1768 | 4.8574 | 2.5872 | − 0.2397 | − 0.9569 |
DDLM | 14.9362 | 12.5592 | 9.2094 | 6.4518 | 5.5384 | |
JCDLM | 17.2179 | 15.1633 | 10.7918 | 7.8586 | 6.0327 | |
White | K-SVDM | 2.4519 | 2.2735 | 1.9674 | 1.7807 | 1.1582 |
DDLM | 8.4895 | 5.887 | 4.9343 | 3.9035 | 2.4761 | |
JCDLM | 9.6935 | 7.0714 | 6.0125 | 4.6939 | 2.9905 | |
F16 | K-SVDM | 1.9365 | 1.0518 | 0.9635 | 0.6829 | 0.2835 |
DDLM | 7.7137 | 4.0154 | 1.493 | 1.1331 | 0.3107 | |
JCDLM | 8.0659 | 4.8726 | 2.0129 | 1.3358 | 0.4882 | |