Evaluation of Sound Event Detection, Classification and Localization in the Presence of Background Noise for Acoustic Surveillance of Hazardous Situations

  • Kuba Łopatka
  • Józef Kotus
  • Andrzej Czyżewski
Part of the Communications in Computer and Information Science book series (CCIS, volume 429)

Abstract

Evaluation of sound event detection, classification and localization of hazardous acoustic events in the presence of background noise of different types and changing intensities is presented. The methods for separating foreground events from the acoustic background are introduced. The classifier, based on a Support Vector Machine algorithm, is described. The set of features and samples used for the training of the classifier are introduced. The sound source localization algorithm based on the analysis of multichannel signals from the Acoustic Vector Sensor is presented. The methods are evaluated in an experiment conducted in the anechoic chamber, in which the representative events are played together with noise of differing intensity. The results of detection, classification and localization accuracy with respect to the Signal to Noise Ratio are discussed. The algorithms presented are part of an audio-visual surveillance system.

Keywords

sound detection sound source localization audio surveillance 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Kuba Łopatka
    • 1
  • Józef Kotus
    • 1
  • Andrzej Czyżewski
    • 1
  1. 1.Faculty of Electronics,Telecommunications and Informatics, Multimedia Systems DepartmentGdańsk University of TechnologyGdańskPoland

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