Title :
Sound source localization with DAS beamforming method using small number of microphones
Author :
Kurc, David ; Mach, Vaclav ; Orlovsky, Kristian ; Khaddour, Hasan
Author_Institution :
Dept. of Telecommun., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
Localization of the sound source using microphone arrays is largely done by Acoustical Holography or Beamforming method. In this paper we present an implementation of Delay-And-Sum algorithm for beamforming computation using various microphone arrays. A MATLAB code was implemented for postprocessing of obtained acoustic signals. There is also included a description of the fractional delay filter implementation to delay the signal samples by racional values of sample period. The goal of this paper was comparing the accuracy of the source localization with the microphone arrays using small number of microphones. The results of the localization of several noise sources by the different types of arrays is presented.
Keywords :
acoustic measurement; acoustic noise; array signal processing; delay filters; microphone arrays; MATLAB code; acoustic signals; acoustical holography; beamforming computation; delay-and-sum algorithm; fractional delay filter implementation; microphone arrays; noise sources; sound source localization; Acoustic beams; Array signal processing; Delays; Microphone arrays; Noise; Signal resolution; Acoustic measurement; Delay-And-Sum; beamforming; localization; microphone array; noise source;
Conference_Titel :
Telecommunications and Signal Processing (TSP), 2013 36th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4799-0402-0
DOI :
10.1109/TSP.2013.6613988