Design and Realization of the Embedded Audio Processing System Based on SoPC

This paper introduces a scheme of designing audio process system based on implementation of SoPC technology.The system is mainly constituted by Cyclone Ⅱ FPGA which Nios Ⅱ soft core processor embedded in,and audio encode and decode chip.The realization of collecting and replaying of audio signal processing is formed by embedded Linux operating system.The paper introduces the process of configuring Nios Ⅱ embedded processors,peripherals and interface by SoPC Builder,and the transplant process of embedded Linux operating system in SoPC system.The characters of reducing of SoPC system and transplanting of embedded system make the design as a subsystem used in the video frequency telephone of network conference.This method has a high reference value for development and research of SoPC system.