The Audio Transmission Network Based On CobraNet Technology

As a result of economic progress ,professional audio transfer system arc more frequently used. It is used in many places such as huge site, main place of amusement, huge showplace. Conventional analog distribute and wiring mode can not fulfill task of transfer more and more complicated high quality audio system. The only way to solve the problem is using digital and network technology to improve broadcasting mode. Then we can buildup modern audio transmission system.This article introduces the basis form of the whole audio transmission network: CobraNet. we introduces each part of the hardware system and the develop software environment of the system. first we particularly commended the CobraNet technology. We expatiate on how to implement digital audio transmission network system. then we introduce the compose of the system. We layout the whole digital audio transmission system based on the CobraNet audio equipment as transmit centre. We introduce the hardware system such as ARM , FPGA , CM-2 function module to describe the operational principle of the CobraNet and the process of how to manage audio signal. In the software part, we introduce software develop environment ADS and ISE which are used in ARM and FPGA design. We list the main code in the controller which use ARM as core processor . And we introduce how to realize route and coding function in FPGA.The device is based on CobraNet technolgy, design a reliable and stable digital audio transmission equipment. The equipment in the past digital audio equipment compared to the use of advanced ARM chip as the core of control, high-speed FPGA used as a core router. Improve the reliability of the equipment, stability and flexibility and improve the entire digital audio transmission network quality.