standard mode | Statistics category
- array (vector_real) - the input array (cannot contain negative values, and must be non-empty)
- entropy (real) - the entropy of the input array
This algorithm computes the Shannon entropy of an array. Entropy can be used to quantify the peakiness of a distribution. This has been used for voiced/unvoiced decision in automatic speech recognition.
Entropy cannot be computed neither on empty arrays nor arrays which contain negative values. In such cases, exceptions will be thrown.
-  H. Misra, S. Ikbal, H. Bourlard and H. Hermansky, "Spectral entropy based feature for robust ASR," in IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP'04).