Unsupervised blue whale call detection using multiple time-frequency features

Alejandro Cuevas, Alejandro Veragua, Sonia Español-Jiménez, Gustavo Chiang, Felipe Tobar

Producción científica: Contribución a los tipos de informe/libroContribución a la conferenciarevisión exhaustiva

6 Citas (Scopus)

Resumen

In the context of bio-acoustic sciences, call detection is a critical task for understanding the behaviour of marine mammals such as the blue whale species (Balaeonoptera musculus) considered in this work. In this paper we present an approach to blue whale call detection from an unsupervised perspective. To achieve this, we use temporal and spectral features of audio acquired with a marine autonomous recording unit. The features considered are 46-dimensional and include the mel frequency ceptrum coefficients, chromagrams, and other scalar quantities; these features were then grouped via two different clustering algorithms. Our findings confirm the suitability of the proposed approach for isolating blue whale calls from other environmental sounds (as validated by a bio-acoustic specialist). This is a clear contribution for the annotation of blue whales calls, where the search for calls can now be performed by analysing the clusters identified instead of the entire recordings, thus saving time and effort for practitioners in bio-acoustics.

Idioma originalInglés
Título de la publicación alojada2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2017 - Proceedings
EditorialInstitute of Electrical and Electronics Engineers Inc.
Páginas1-6
Número de páginas6
ISBN (versión digital)9781538631232
DOI
EstadoPublicada - 19 dic. 2017
Publicado de forma externa
Evento2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2017 - Pucon, Chile
Duración: 18 oct. 201720 oct. 2017

Serie de la publicación

Nombre2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2017 - Proceedings
Volumen2017-January

Conferencia

Conferencia2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies, CHILECON 2017
País/TerritorioChile
CiudadPucon
Período18/10/1720/10/17

Áreas temáticas de ASJC Scopus

  • Tecnología de medios
  • Ingeniería eléctrica y electrónica
  • Informática aplicada
  • Redes de ordenadores y comunicaciones
  • Ingeniería de control y sistemas

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