DocumentCode :
1599177
Title :
Effect of Temporal Evolution of Songs on Cepstrum-based Voice Signature in Humpback Whales
Author :
Mazhar, Suleman ; Ura, Tamaki ; Bahl, Rajendar
Author_Institution :
Inst. of Ind. Sci., Univ. of Tokyo, Tokyo
fYear :
2008
Firstpage :
1
Lastpage :
8
Abstract :
Cetacean surveys are important for species´ population assessments in ecological projects. Acoustics, in this context, provides an efficient, automatic, non-invasive and convenient way to study and observe vocally active cetaceans. Development of a reliable and unbiased acoustic survey method can be a good replacement for conventional tools like line- transect method. However, realization of this goal is yet far from reality. Motivated by recent advancements in acoustics and computational methods, we propose an automatic recognition system for individuals within same cetacean family. The suggested system relies on development of individuals´ database based on characteristics of their vocalizations. Such a methodology, accompanied by acoustics based tracking, localization and cetacean behaviour analysis, promises complete social picture of marine eco-system through non-invasive means. In this context, we present our results on recognition of individual humpback whales based on their vocalization data. Previously we reported results using training and test data from the same song. This work analyzes the classification accuracy of data from different songs, i. e. training and test data sets were recorded in different timings. It helps to analyze effects of temporal song evolution on accuracy of our system.
Keywords :
oceanographic techniques; underwater sound; acoustic survey method; acoustics based tracking; automatic recognition system; cetacean behaviour analysis; cetacean surveys; computational methods; humpback whales recognition; line-transect method; marine eco-system; species population assessments; temporal species song evolution; vocally active cetaceans; whales vocalization data; Acoustic testing; Animals; DNA; Databases; Dolphins; Earth; Electronics industry; Industrial electronics; Timing; Whales;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean
Conference_Location :
Kobe
Print_ISBN :
978-1-4244-2125-1
Electronic_ISBN :
978-1-4244-2126-8
Type :
conf
DOI :
10.1109/OCEANSKOBE.2008.4531057
Filename :
4531057
Link To Document :
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