An FPGA-based voice signal preprocessor for the real-time cross-correlation

Author

Jin, Seung Hun ; Cho, Jung Uk ; Lee, Dae Ro ; Park, Jong Hyun ; Kim, Hyung Soon ; Lee, Chang Hoon ; Choi, Jong Suk ; Jeon, Jae Wook

Author_Institution

Sungkyunkwan Univ., Suwon

fYear

2007

fDate

17-20 Oct. 2007

Firstpage

793

Lastpage

797

Abstract

In this paper, we present an FPGA-based real-time voice signal preprocessing system that can compute the cross-correlation of the voice signals from number of microphones. Each cross-correlation is calculated using voice signals captured within 200 ms which has 10 ms shifting window. The sampling frequency of the proposed system is 48 KHz and the resolution of each sample is 16 bits. The entire algorithm is implemented in hardware based on FPGA and runs in real-time.

Keywords

correlation methods; field programmable gate arrays; signal resolution; signal sampling; speech processing; FPGA-based voice signal preprocessor; frequency sampling; real-time cross-correlation; signal resolution; Data mining; Data processing; Electronic mail; Field programmable gate arrays; Frequency; Hardware; Microphones; Real time systems; Signal processing; Signal resolution; Cross-correlation; Energy Detection; FPGA; VHDL; Voice Signal;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Automation and Systems, 2007. ICCAS '07. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-950038-6-2

Electronic_ISBN

978-89-950038-6-2

Type

conf

DOI

10.1109/ICCAS.2007.4407008

Filename

4407008