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4. Selected Applications 167

Figure 4-16. Mixed signals

Figure 4-17 Separated speech signals using ICA

7.2 Experiment 2

Speech signal x(t) and noise n(t) are linearly mixed to get two mixed signals
y1(t) and y2(t) as given below.

y1(t) = 0.7*x(t) + 0.3*n(t)
y2(t) = 0.3*x(t)+ 0.7*n(t)

The mixed signals are subjected to ICA algorithm to obtain the speech
signal and noise signal separately.