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Table 2 Sets of descriptors extracted from the temporal evolution of frame-level features and the number of descriptors per frame level feature.

From: Ecological Acoustics Perspective for Content-Based Retrieval of Environmental Sounds

Name Description No. desc.
mv mean and variance 2
mvd mv, derivatives 6
mvdad mvd, log attack time and decay 8
mvdadt mvdad, temp. centroid, kurtosis, skewness, flatness 12