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http://dx.doi.org/10.6109/jkiice.2007.11.2.366

A Design of Multi-channel Speech Pickup Embedded System for Hands-free Comuunication  

Ju, Hyng-Jun (한국해양대학교 공과대학 전파공학과)
Park, Chan-Sub (한국해양대학교 공과대학 전파공학과)
Jeon, Jae-Kuk (한국해양대학교 공과대학 전파공학과)
Kim, Ki-Man (한국해양대학교 공과대학 전파공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.11, no.2, 2007 , pp. 366-373 More about this Journal
Abstract
In this paper we propose a multi-channel speech pickup system for calling quality enhancement of hands-free communication using ALTERA Nios-II processor. Multi-channel speech pickup system uses Delay-and-Sum beamformer with zero-padding interpolator. This paper implements speech pickup system using the Nios-II processor with real-time I/O data processing speed. The proposes speech pickup embedded system shows a good agreement with those of computer simulation(MATLAB) and conventional DSP processor(TMS320C6711) result. The proposed method is effective more than previous methods in cost and design processing time. As a result, LE(Logic Element) of hardware used 3,649/5,980(61%) on a chip.
Keywords
FPGA;
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