Table 1 Frame-level descriptors chosen by the feature-selection process on our dataset.
From: Ecological Acoustics Perspective for Content-Based Retrieval of Environmental Sounds
High frequency content |
|---|
Instantaneous confidence of pitch detector (yinFFT) |
Spectral contrast coefficients |
Silence rate (−20 dB, −30 dB and −60 dB) |
Spectral centroid |
Spectral complexity |
Spectral crest |
Spectral spread |
Shape-based spectral contrast |
Ratio of energy per band (20–150 Hz, 150–800 Hz, 800–4 k Hz, 4 k–20 kHz) |
Zero crossing rate |
Inharmonicity |
Tristimulus of harmonic peaks |