Real-time sound localization using field-programmable gate arrays

Author

Nguyen, Duy ; Aarabi, Parham ; Sheikholeslami, Ali

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

2

fYear

2003

fDate

6-9 July 2003

Abstract

This paper presents a single FPGA implementation of a real-time sound localization system using two microphones. The implementation, utilizing a cross-correlation technique based on a modified version of the phase transform, successfully localizes sound sources in noisy environments with as low an SNR as 10 dB. Using the same algorithm and similar hardware architecture, it is shown that up to 5 parallel systems (using 10 microphones), all real-time, can be implemented on a single FPGA while only utilizing an estimated 77 mW-108 mW per microphone.

Keywords

audio signal processing; computer architecture; field programmable gate arrays; microphones; 10 dB; 77 to 108 mW; SNR; cross-correlation technique; field-programmable gate arrays; hardware architecture; microphones; phase transform; real-time sound localization; single FPGA implementation; Acoustic noise; Digital signal processing chips; Educational institutions; Field programmable gate arrays; Hardware; Microphone arrays; Signal processing; Signal processing algorithms; Strontium; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on

Print_ISBN

0-7803-7965-9

Type

conf

DOI

10.1109/ICME.2003.1221745

Filename

1221745