Multiple acoustic sources localization using incident Signal Power comparison

Author

Salvati, Daniele ; Roda, Antonio ; Canazza, Sergio ; Foresti, Gian Luca

Author_Institution

Dept. of Math. & Comput. Sci., Univ. of Udine, Udine, Italy

fYear

2011

fDate

Aug. 30 2011-Sept. 2 2011

Firstpage

77

Lastpage

82

Abstract

We present a novel approach to locate multiple acoustic sources in far-field environments, in order to solve an interesting problem in different application domain, such as: audio surveillance systems and soundscape analysis frameworks. This approach aims at finding a solution to the ambiguities in Direction Of Arrivals (DOAs) combination caused by simultaneous multiple sources. The algorithm is based on two steps: the separation of the sources by means of beamforming techniques and the comparison of the Incident Signal Power (ISP) spectrum by means of a spectral distance measure. We implemented a prototype, composed by two linear arrays, that has been successfully tested in a real noisy environment.

Keywords

acoustic signal processing; array signal processing; direction-of-arrival estimation; audio surveillance systems; direction of arrival estimation; incident signal power spectrum; linear arrays; multiple acoustic sources localization; soundscape analysis frameworks; spectral distance measure; Acoustics; Array signal processing; Direction of arrival estimation; Estimation; Microphone arrays; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Video and Signal-Based Surveillance (AVSS), 2011 8th IEEE International Conference on

Conference_Location

Klagenfurt

Print_ISBN

978-1-4577-0844-2

Electronic_ISBN

978-1-4577-0843-5

Type

conf

DOI

10.1109/AVSS.2011.6027298

Filename

6027298