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Exploiting Spatial Diversity for Increasing the Robustness of Sound Source Localization Systems Against Reverberation by Guillermo García-Barrios; Eduardo Latorre Iglesias; Juana M. Gutiérrez-Arriola; Rubén Fraile; Nicolás Sáenz-Lechón; Víctor José Osma-Ruiz is a Engineering article available to read on EtoBox.

What is Exploiting Spatial Diversity for Increasing the Robustness of Sound Source Localization Systems Against Reverberation about?

Acoustic reverberation is one of the most relevant factors that hampers the localization of a sound source inside a room. To date, several approaches have been proposed to deal with it, but have not always been evaluated under realistic conditions. This paper proposes exploiting spatial diversity as an alternative approach to achieve robustness against reverberation. The theoretical arguments supporting this approach are first presented and later confirmed by means of simulation results and real measurements. Simulations are run for reverberation times up to 2 s, thus providing results with a wider range of validity than in other previous research works. It is concluded that the use of systems consisting of several, sufficiently separated, small arrays leads to the best results in reverberant environments. Some recommendations are given regarding the choice of the array sizes, the separation among them, and the way to combine SRP-PHAT maps obtained from diverse arrays.

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Author

Guillermo García-Barrios; Eduardo Latorre Iglesias; Juana M. Gutiérrez-Arriola; Rubén Fraile; Nicolás Sáenz-Lechón; Víctor José Osma-Ruiz

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)