935034.fig.006a
(a)
935034.fig.006b
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Figure 6: Trend detection noisy speech signal. (a) Standardized empirical mean of the fine-to-coarse EMD reconstruction, evidencing as the change point; (b) top: original signal, middle: estimated trend obtained from the partial reconstruction with IMFs 3 to 7 + the residual, bottom: noise (detrended) signal obtained from the partial reconstruction with IMFs 1 to 2.