Until recently few research has been performed in the area of animal sound retrieval. The authors identify state-of-the-art techniques in general purpose sound recognition by a broad survey of literature. Based on the findings, this paper gives a thorough investigation of audio features and classifiers and their applicability in the domain of animal sounds. We introduce a set of novel audio descriptors and compare their quality to other popular features. The results are encouraging and motivate further research in this domain.
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