Article (Scientific journals)
Finding good acoustic features for parrot vocalizations: The feature generation approach
Giret, Nicolas; Roy, Pierre; Albert, Aurélie et al.
2011In Journal of the Acoustical Society of America, 129, p. 1089-1099
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Keywords :
vocalization; parrot; call; spectrography; bioacoustics
Abstract :
[en] A crucial step in the understanding of vocal behavior of birds is to be able to classify calls in the repertoire into meaningful types. Methods developed to this aim are limited either because of human subjectivity or because of methodological issues. The present study investigated whether a feature generation system could categorize vocalizations of a bird species automatically and effectively. This procedure was applied to vocalizations of African gray parrots, known for their capacity to reproduce almost any sound of their environment. Outcomes of the feature generation approach agreed well with a much more labor-intensive process of a human expert classifying based on spectrographic representation, while clearly out-performing other automated methods. The method brings significant improvements in precision over commonly used bioacoustical analyses. As such, the method enlarges the scope of automated, acoustics-based sound classification.
Disciplines :
Neurosciences & behavior
Zoology
Author, co-author :
Giret, Nicolas;  Université Paris Ouest Nanterre La Défense > Laboratoire d’Ethologie et Cognition Comparées
Roy, Pierre;  Sony Computer Science Laboratory
Albert, Aurélie ;  Université de Liège - ULiège > Doct. sc. (biol. orga. & écol. - Bologne)
Pachet, François;  Sony Computer Science Laboratory
Kreutzer, Michel;  Université Paris Ouest Nanterre La Défense > Laboratoire d’Ethologie et Cognition Comparées
Bovet, Dalila;  Université Paris Ouest Nanterre La Défense > Laboratoire d’Ethologie et Cognition Comparées
Language :
English
Title :
Finding good acoustic features for parrot vocalizations: The feature generation approach
Publication date :
2011
Journal title :
Journal of the Acoustical Society of America
ISSN :
0001-4966
eISSN :
1520-8524
Publisher :
American Institute of Physics, Melville, United States - New York
Volume :
129
Pages :
1089-1099
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 December 2011

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