2006•International Electronic ElementsRequires access
A multi-video and audio gathering and processing system based on DSP
Daoming Mu
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Abstract
The multi-video and audio processing system with digital signal processor TMS320DM642 which produced by TI company is designed,disposing 4-channel video and 4-channel audio analog input signals,one channel video analog or digital output signal and one channel audio analog output signal.This system can processing analog input signal with PAL/NTSC standard,composite video CVBS and video component Y/C format,it can process analog or digital output signal with PAL/NTSC standard,S-video and digital RGB,it also can process microphone or stereo analog input and stereo analog output.In this paper,the design principle of software and hardware and circuit are given.