Journal of Healthcare Engineering

Research Article

Performance of Adaptive Noise Cancellation with Normalized Last-Mean-Square Based on the Signal-to-Noise Ratio of Lung and Heart Sound Separation

Table 7

SNR after applying the designed algorithm on normal LSS.
LSS# values
24816326412825651210242048
(dB)
LSN10.064−24.82−16.36−16.82−13.63−11.06−8.52−6.18−2.240.833.7617.64
0.021−24.82−20.59−16.82−13.63−11.06−6.51−7.00−2.242.863.5812.39
0.017−24.82−20.59−16.82−8.11−10.66−8.18−3.34−0.933.523.7311.25
0.010−24.75−20.59−16.82−11.11−10.85−9.20−7.00−2.243.463.588.83
LSN30.025−20.90−18.84−16.76−14.79−13.37−9.60−9.49−8.26−3.23−3.68−0.63
0.011−21.17−16.92−16.76−13.31−12.31−12.28−9.49−2.63−4.94−3.68−1.64
0.010−21.17−17.52−16.76−14.79−13.42−12.46−4.64−5.35−5.81−3.68−1.42
0.009−21.17−18.84−16.68−14.79−13.37−11.90−8.21−2.68−5.81−3.68−1.95
LSN50.026−25.95−24.07−19.72−17.32−9.96−10.56−8.47−4.76−0.141.786.56
0.020−24.56−13.45−19.11−12.52−12.21−10.51−8.47−4.762.155.026.02
0.013−27.94−21.41−18.37−17.32−14.24−10.29−8.47−4.76−0.781.784.88
0.010−26.35−19.43−18.55−17.32−9.71−8.15−8.47−4.76−1.101.783.94