Combining sound source tracking algorithms based on microphone array to improve real-time localization

Author

Ibala, Christian ; Vachaudez, Julien ; Fourtounis, Georgios ; Possa, Paulo ; Valderrama, Carlos

Author_Institution

Dept. of Electron. & Comput. Eng, Univ. of Limerick, Limerick, Ireland

fYear

2012

fDate

24-26 May 2012

Firstpage

478

Lastpage

483

Abstract

In this paper we present a novel approach to reduce the computation burden of a Field Programmable Gate Array based beamforming localization algorithm. This approach combines GCC (Generalize Cross Correlation) and DSB (Delay and Sum Beamforming). In this work, we reduce the position search spectrum by detecting the direction of arrival of the sound source before the computation of its position, this reduce the DSB computation volume by at least 50% without affecting the localization precision in the speech extended bandwidth.

Keywords

array signal processing; audio signal processing; correlation methods; field programmable gate arrays; microphone arrays; speech processing; DSB; beamforming localization algorithm; combining sound source tracking algorithm; delay and sum beamforming; direction of arrival; field programmable gate array; generalize cross correlation; microphone array; real-time localization; speech extended bandwidth; Array signal processing; Arrays; Hardware; Microphones; Sensors; Signal processing algorithms; Software; DSB; Localization; Reconfigurable Platform; Voice detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed Design of Integrated Circuits and Systems (MIXDES), 2012 Proceedings of the 19th International Conference

Conference_Location

Warsaw

Print_ISBN

978-1-4577-2092-5

Type

conf

Filename

6226237