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EURASIP Journal on Audio, Speech, and Music Processing
Figure 2 | EURASIP Journal on Audio, Speech, and Music Processing

Figure 2

From: Noise-robust speech feature processing with empirical mode decomposition

Figure 2

The log-energy sequences of the Aurora 2.0 utterance MKG_677884ZA under the corruption of the subway noise of different SNRs. Left: the raw log-energy sequences; right: after the mean-variance normalization and the proposed EMD post-processing. Due to the difference in dynamic range, the left-side block and the right-side block cannot have the same scale. Yet, it is not difficult to observe the degree of similarity of both sides.

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